# What is CVE-2019-12259?

> CVE-2019-12259 is a high-severity flaw (CVSS 7.5) in Vxworks from Windriver, published on 9 August 2019. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 16%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2019-12259

## At a glance

- **Verdict:** Fix this soon. Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month.
- **Precursor Intelligence risk score:** 48 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes.
- **Severity:** High (CVSS 7.5 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** 16% (latest exploit-likelihood forecast)
- **Published:** 9 August 2019
- **Record last updated:** 16 June 2022
- **Main product:** Vxworks from Windriver
- **Affected products:** 49

## What is CVE-2019-12259? In plain terms

It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can take it offline.

### The official description

Wind River VxWorks 6.6, 6.7, 6.8, 6.9 and vx7 has an array index error in the IGMPv3 client component. There is an IPNET security vulnerability: DoS via NULL dereference in IGMP parsing.

### What kind of flaw is it?

- CWE-476: NULL Pointer Dereference

### How an attack on it works

- Where an attacker can be: Anywhere on the internet
- How hard it is to pull off: Easy: no special conditions
- Login needed first: No login needed
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can take it offline

Severity vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

## Is CVE-2019-12259 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 16%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 16%, 16%, 16%, 16%, 16%, 16%, 16%.

### Timeline

- 9 August 2019: Published
- 16 June 2022: Record last updated
- 20 July 2025: Exploit likelihood jumped
- 19 September 2025: Exploit likelihood fell

### How Precursor Intelligence ranks it

CVE-2019-12259 scores **48 out of 100 (Medium)**, with the action "Plan remediation".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: smaller factor
- Threat activity around it: smaller factor

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2019-12259?

The published record lists 49 products. Versions are as published: "6.5 to before 6.9.4.12" means from 6.5 up to, but not including, 6.9.4.12.

- [Vxworks](https://www.precursorintelligence.com/product/windriver/vxworks) by [Windriver](https://www.precursorintelligence.com/vendors/windriver) (Operating system): 6.5 to before 6.9.4.12, 7.0
- [SonicOS](https://www.precursorintelligence.com/product/sonicwall/sonicos) by [SonicWall](https://www.precursorintelligence.com/vendors/sonicwall) (Operating system): 5.9.0.0 to 5.9.0.7, 5.9.1.0. to 5.9.1.12, 6.2.0.0 to 6.2.3.1, 6.2.4.0 to 6.2.4.3, 6.2.5.0 to 6.2.5.3, 6.2.6.0 to 6.2.6.1, 6.2.7.0 to 6.2.7.4, 6.2.7.7, 6.2.9.0 to 6.2.9.2, 6.5.0.0 to 6.5.0.3, 6.5.1.0 to 6.5.1.4, 6.5.2.0 to 6.5.2.3, 6.5.3.0 to 6.5.3.3, 6.5.4.0. to 6.5.4.3
- [Hirschmann Hios](https://www.precursorintelligence.com/product/belden/hirschmann_hios) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Operating system): up to 07.0.07, up to 07.5.01, up to 07.2.04, up to 05.3.06
- [Siprotec 5 Firmware](https://www.precursorintelligence.com/product/siemens/siprotec_5_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 7.59, before 7.91
- [9410 Power Meter](https://www.precursorintelligence.com/product/siemens/9410_power_meter) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified
- [9410 Power Meter Firmware](https://www.precursorintelligence.com/product/siemens/9410_power_meter_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 2.2.1
- [9810 Power Meter](https://www.precursorintelligence.com/product/siemens/9810_power_meter) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified
- [9810 Power Meter Firmware](https://www.precursorintelligence.com/product/siemens/9810_power_meter_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before 2.2.1
- [Garrettcom Magnum Dx940e](https://www.precursorintelligence.com/product/belden/garrettcom_magnum_dx940e) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Garrettcom Magnum Dx940e Firmware](https://www.precursorintelligence.com/product/belden/garrettcom_magnum_dx940e_firmware) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Operating system): up to 1.0.1_y7
- [Hirschmann Dragon Mach4000](https://www.precursorintelligence.com/product/belden/hirschmann_dragon_mach4000) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Dragon Mach4500](https://www.precursorintelligence.com/product/belden/hirschmann_dragon_mach4500) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Eagle One](https://www.precursorintelligence.com/product/belden/hirschmann_eagle_one) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Eagle20](https://www.precursorintelligence.com/product/belden/hirschmann_eagle20) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Eagle30](https://www.precursorintelligence.com/product/belden/hirschmann_eagle30) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Ees20](https://www.precursorintelligence.com/product/belden/hirschmann_ees20) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Ees25](https://www.precursorintelligence.com/product/belden/hirschmann_ees25) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Eesx20](https://www.precursorintelligence.com/product/belden/hirschmann_eesx20) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Eesx30](https://www.precursorintelligence.com/product/belden/hirschmann_eesx30) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Grs1020](https://www.precursorintelligence.com/product/belden/hirschmann_grs1020) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Grs1030](https://www.precursorintelligence.com/product/belden/hirschmann_grs1030) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Grs1042](https://www.precursorintelligence.com/product/belden/hirschmann_grs1042) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Grs1120](https://www.precursorintelligence.com/product/belden/hirschmann_grs1120) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Grs1130](https://www.precursorintelligence.com/product/belden/hirschmann_grs1130) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Grs1142](https://www.precursorintelligence.com/product/belden/hirschmann_grs1142) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Msp30](https://www.precursorintelligence.com/product/belden/hirschmann_msp30) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Msp32](https://www.precursorintelligence.com/product/belden/hirschmann_msp32) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Msp40](https://www.precursorintelligence.com/product/belden/hirschmann_msp40) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Octopus Os3](https://www.precursorintelligence.com/product/belden/hirschmann_octopus_os3) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rail Switch Power Lite](https://www.precursorintelligence.com/product/belden/hirschmann_rail_switch_power_lite) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rail Switch Power Smart](https://www.precursorintelligence.com/product/belden/hirschmann_rail_switch_power_smart) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Red25](https://www.precursorintelligence.com/product/belden/hirschmann_red25) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rsp20](https://www.precursorintelligence.com/product/belden/hirschmann_rsp20) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rsp25](https://www.precursorintelligence.com/product/belden/hirschmann_rsp25) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rsp30](https://www.precursorintelligence.com/product/belden/hirschmann_rsp30) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rsp35](https://www.precursorintelligence.com/product/belden/hirschmann_rsp35) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rspe30](https://www.precursorintelligence.com/product/belden/hirschmann_rspe30) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rspe32](https://www.precursorintelligence.com/product/belden/hirschmann_rspe32) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rspe35](https://www.precursorintelligence.com/product/belden/hirschmann_rspe35) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Hirschmann Rspe37](https://www.precursorintelligence.com/product/belden/hirschmann_rspe37) by [Belden](https://www.precursorintelligence.com/vendors/belden) (Hardware): version not specified
- [Ruggedcom Win7000](https://www.precursorintelligence.com/product/siemens/ruggedcom_win7000) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified
- [Ruggedcom Win7000 Firmware](https://www.precursorintelligence.com/product/siemens/ruggedcom_win7000_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before bs5.2.461.17
- [Ruggedcom Win7018](https://www.precursorintelligence.com/product/siemens/ruggedcom_win7018) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified
- [Ruggedcom Win7018 Firmware](https://www.precursorintelligence.com/product/siemens/ruggedcom_win7018_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before bs5.2.461.17
- [Ruggedcom Win7025](https://www.precursorintelligence.com/product/siemens/ruggedcom_win7025) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified
- [Ruggedcom Win7025 Firmware](https://www.precursorintelligence.com/product/siemens/ruggedcom_win7025_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before bs5.2.461.17
- [Ruggedcom Win7200](https://www.precursorintelligence.com/product/siemens/ruggedcom_win7200) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Hardware): version not specified
- [Ruggedcom Win7200 Firmware](https://www.precursorintelligence.com/product/siemens/ruggedcom_win7200_firmware) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): before bs5.2.461.17
- [Siprotec 5](https://www.precursorintelligence.com/product/siemens/siprotec_5) by [Siemens](https://www.precursorintelligence.com/vendors/siemens) (Operating system): version not specified

## How do I fix CVE-2019-12259?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisories and patch notes first in the list.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [support2.windriver.com](https://support2.windriver.com/index.php?page=cve&on=view&id=CVE-2019-12259) (Vendor advisory)
- [support2.windriver.com](https://support2.windriver.com/index.php?page=security-notices) (Issue tracking, Vendor advisory)
- [windriver.com](https://www.windriver.com/security/announcements/tcp-ip-network-stack-ipnet-urgent11/) (Vendor advisory)
- [cert-portal.siemens.com](https://cert-portal.siemens.com/productcert/pdf/ssa-189842.pdf) (Third-party advisory)
- [cert-portal.siemens.com](https://cert-portal.siemens.com/productcert/pdf/ssa-352504.pdf) (Third-party advisory)
- [cert-portal.siemens.com](https://cert-portal.siemens.com/productcert/pdf/ssa-632562.pdf) (Third-party advisory)
- [psirt.global.sonicwall.com](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0009) (Third-party advisory)
- [security.netapp.com](https://security.netapp.com/advisory/ntap-20190802-0001/) (Third-party advisory)
- [support.f5.com](https://support.f5.com/csp/article/K41190253) (Third-party advisory)

## Questions

### What is CVE-2019-12259?

CVE-2019-12259 is a high-severity flaw in Vxworks from Windriver, published on 9 August 2019. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can take it offline.

### How serious is CVE-2019-12259?

It scores 7.5 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2019-12259 is 48 out of 100, which is Medium. Its action is "Plan remediation". Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month.

### Is CVE-2019-12259 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 16%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2019-12259 affect?

For Vxworks from Windriver: 6.5 to before 6.9.4.12, 7.0. The record lists 49 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2019-12259?

Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2019-12259 affect you?

Precursor Intelligence keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

Start free (no card, nothing to install): https://www.precursorintelligence.com/register
Book a demo: https://www.precursorintelligence.com/contact