# What is CVE-2001-1593? > CVE-2001-1593 is a low-severity flaw (CVSS 2.1) in A2ps from Gnu, published on 5 April 2014. 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 0.4%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2001-1593 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **Precursor Intelligence risk score:** 9 out of 100 (Info); action: Track. Kept up to date as the evidence changes. - **Severity:** Low (CVSS 2.1 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:** 0.4% (latest exploit-likelihood forecast) - **Published:** 5 April 2014 - **Record last updated:** 12 April 2025 - **Main product:** A2ps from Gnu - **Affected products:** 1 ## What is CVE-2001-1593? In plain terms An attacker has to be already on the device without logging in. If it works, the attacker can change some data. ### The official description The tempname_ensure function in lib/routines.h in a2ps 4.14 and earlier, as used by the spy_user function and possibly other functions, allows local users to modify arbitrary files via a symlink attack on a temporary file. ### What kind of flaw is it? - CWE-59: Improper Link Resolution Before File Access ('Link Following') ### How an attack on it works - Where an attacker can be: Already on the device - How hard it is to pull off: Easy: no special conditions - Login needed first: No login needed - What an attacker gets: Can change some data Severity vector: `AV:L/AC:L/Au:N/C:N/I:P/A:N` ## Is CVE-2001-1593 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 0.4%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%. ### Timeline - 5 April 2014: Published - 7 March 2023: Exploit likelihood fell - 17 March 2025: Exploit likelihood jumped - 12 April 2025: Record last updated ### How Precursor Intelligence ranks it CVE-2001-1593 scores **9 out of 100 (Info)**, with the action "Track". 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-2001-1593? The published record lists 1 product. - [A2ps](https://www.precursorintelligence.com/product/gnu/a2ps) by [Gnu](https://www.precursorintelligence.com/vendors/gnu) (Application): up to 4.14 ## How do I fix CVE-2001-1593? 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 latest update from the vendor. The references list where the vendor has published details. 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 - [pkgs.fedoraproject.org](http://pkgs.fedoraproject.org/cgit/a2ps.git/plain/a2ps-4.13-security.patch) - [seclists.org](http://seclists.org/oss-sec/2014/q1/237) - [seclists.org](http://seclists.org/oss-sec/2014/q1/253) - [seclists.org](http://seclists.org/oss-sec/2014/q1/257) - [debian.org](http://www.debian.org/security/2014/dsa-2892) - [bugs.debian.org](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=737385) - [bugzilla.redhat.com](https://bugzilla.redhat.com/show_bug.cgi?id=1060630) ## Questions ### What is CVE-2001-1593? CVE-2001-1593 is a low-severity flaw in A2ps from Gnu, published on 5 April 2014. An attacker has to be already on the device without logging in. If it works, the attacker can change some data. ### How serious is CVE-2001-1593? It scores 2.1 out of 10 on the CVSS severity scale, which is low. Our risk score for CVE-2001-1593 is 9 out of 100, which is Info. Its action is "Track". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2001-1593 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 0.4%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2001-1593 affect? For A2ps from Gnu: up to 4.14. ### How do I fix CVE-2001-1593? Install the update the vendor names in its advisory. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet. ## Does CVE-2001-1593 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