CVE-2020-25559
CVE-2020-25559 is a high-severity vulnerability in Gnuplot with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-415.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-415
- Affected product: Gnuplot
- Published:
- Last modified:
Description
gnuplot 5.5 is affected by double free when executing print_set_output. This may result in context-dependent arbitrary code execution.
Frequently asked questions
- What is CVE-2020-25559?
- gnuplot 5.5 is affected by double free when executing print_set_output. This may result in context-dependent arbitrary code execution.
- How severe is CVE-2020-25559?
- CVE-2020-25559 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2020-25559 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-25559?
- CVE-2020-25559 affects Gnuplot. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-25559?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-25559 published?
- CVE-2020-25559 was published on 2020-09-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:gnuplot:gnuplot:5.5.0:*:*:*:*:*:*:*
More vulnerabilities in Gnuplot
- CVE-2020-25969 — Critical (CVSS 9.8): gnuplot v5.5 was discovered to contain a buffer overflow via the function plotrequest().
- CVE-2020-25412 — Critical (CVSS 9.8): com_line() in command.c in gnuplot 5.4 leads to an out-of-bounds-write from strncpy() that may lead to arbitrary code…
- CVE-2018-19492 — High (CVSS 7.8): An issue was discovered in cairo.trm in Gnuplot 5.2.5. This issue allows an attacker to conduct a buffer overflow with…
- CVE-2018-19491 — High (CVSS 7.8): An issue was discovered in post.trm in Gnuplot 5.2.5. This issue allows an attacker to conduct a buffer overflow with…
- CVE-2018-19490 — High (CVSS 7.8): An issue was discovered in datafile.c in Gnuplot 5.2.5. This issue allows an attacker to conduct a heap-based buffer…
- CVE-2017-9670 — High (CVSS 7.8): An uninitialized stack variable vulnerability in load_tic_series() in set.c in gnuplot 5.2.rc1 allows an attacker to…
Other CWE-415 (Double Free) vulnerabilities
- CVE-2018-0101 — Critical (CVSS 10.0): A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA)…
- CVE-2026-8925 — Critical (CVSS 9.8): The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing…
- CVE-2020-37239 — Critical (CVSS 9.8): libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety…
- CVE-2026-43414 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Completely fix fcport double…
- CVE-2026-43011 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix potential double free of skb When…
- CVE-2026-31609 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in…