CVE-2026-3713
CVE-2026-3713 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-119.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 4.3
- CVSS v4: 1.9
- EPSS exploit prediction: 0% (3rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-10219
- Weakness: CWE-119
- Published:
- Last modified:
Description
A flaw has been found in pnggroup libpng up to 1.6.55. Affected by this vulnerability is the function do_pnm2png of the file contrib/pngminus/pnm2png.c of the component pnm2png. This manipulation of the argument width/height causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Frequently asked questions
- What is CVE-2026-3713?
- A flaw has been found in pnggroup libpng up to 1.6.55. Affected by this vulnerability is the function do_pnm2png of the file contrib/pngminus/pnm2png.c of the component pnm2png. This manipulation of the argument width/height causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
- How severe is CVE-2026-3713?
- CVE-2026-3713 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-3713 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-3713?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-3713 have an EU (EUVD) identifier?
- Yes. CVE-2026-3713 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10219.
- When was CVE-2026-3713 published?
- CVE-2026-3713 was published on 2026-03-08 and last updated on 2026-06-17.
References
- https://github.com/biniamf/pocs/tree/main/pnm2png
- https://github.com/pnggroup/libpng/
- https://github.com/pnggroup/libpng/issues/794
- https://vuldb.com/?ctiid.349658
- https://vuldb.com/?id.349658
- https://vuldb.com/?submit.761996
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