Arista vulnerabilities3 known to be exploited.

Vendor3 known exploited
The short answer

Arista has 92 published vulnerabilities across 267 products in our catalogue. 3 of them are on the list of flaws known to be exploited, so criminals are using them now. The most affected product is Eos, with 45. If you run Arista software, patch the exploited flaws first.

See the exploited flaws

The most recent Arista flaw added to the known-exploited list is CVE-2026-7473, on 9 June 2026. We keep watching the known-exploited list.

Products

Which Arista products have the most vulnerabilities?

Eos leads with 45 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.

Known exploited

Which Arista vulnerabilities are being exploited?

3 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.

  1. 6.9
    CVE-2026-7473MediumKnown exploited
    Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability

    Arista Extensible Operating System (EOS) contains an incomplete comparison with missing factors vulnerability when the switch incorrectly decapsulate and forwards other unexpected tunneled packet with a destination...

    Chance of use0.6%Known exploited since9 Jun 2026
  2. 9.8
    CVE-2014-6271CriticalKnown exploited
    GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability

    GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute code.

    Chance of use>99%Known exploited since28 Jan 2022
  3. 9.8
    CVE-2014-7169CriticalKnown exploited
    GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability

    GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute code.

    Chance of use>99%Known exploited since28 Jan 2022
Exploit likelihood

Which Arista flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. >99%
    CVE-2014-6271CriticalKnown exploited

    GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by...

    CVSS9.8Published24 Sep 2014
  2. >99%
    CVE-2014-7169CriticalKnown exploited

    GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown...

    CVSS9.8Published25 Sep 2014
  3. >99%

    A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd).

    CVSS8.1Published1 Jul 2024
  4. 85%

    Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.

    CVSS9.8Published4 Oct 2017
  5. 74%

    utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions.

    CVSS9.8Published6 Mar 2020
  6. 53%

    The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel before 4.11, and 4.9.x before 4.9.36, allows remote attackers to cause a denial of service (use-after-free and memory corruption) or...

    CVSS9.8Published3 Jan 2018
  7. 16%

    Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices (and possibly other products) allow attackers to bypass intended TACACS+ shell restrictions via a | character.

    CVSS9.8Published20 Feb 2020
  8. 13%

    The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used in Xen 4.5.x and earlier, allows remote attackers to read process heap memory via unspecified vectors.

    CVSS9.3Published12 Aug 2015
  9. 9.7%

    Heap-based buffer overflow in the PCNET controller in QEMU allows remote attackers to execute arbitrary code by sending a packet with TXSTATUS_STARTPACKET set and then a crafted packet with TXSTATUS_DEVICEOWNS set.

    CVSS7.5Published15 Jun 2015
  10. 8.8%

    Multiple SQL Injection vulnerabilities exist in the reporting application of the Arista Edge Threat Management - Arista NG Firewall (NGFW).

    CVSS8.8Published4 Mar 2024
Every product

All Arista products we track.

27 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.

This directory lists the 27 Arista products with at least one tracked version, of 267 in our catalogue.

Precursor Intelligence

Running Arista? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

  1. Tell us what you runPick your software from a list, or let us work it out from your website.
  2. We match it to every flawOver 400,000 published flaws, checked against your list.
  3. Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
  4. Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.

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FAQ

Common questions, answered plainly.

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Our catalogue lists 92 published vulnerabilities across 267 products and 390 versions from Arista. The most recent Arista flaw added to the known-exploited list is CVE-2026-7473, on 9 June 2026.

3 Arista vulnerabilities are on the list of flaws known to be exploited. The most recently added are CVE-2026-7473, CVE-2014-6271 and CVE-2014-7169. The full list is on this page.

Eos, with 45 published vulnerabilities. Its own page lists the ones known to be exploited.

Create a Precursor Intelligence account and track the Arista products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.