AEGLIX vulnerability intelligence
CVE-2026-34757
MEDIUM · CVSS 5.1 · Analyzed
Published: 2026-04-09 · Updated: 2026-10-26 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T10:18:40.579176+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.0.9 to before 1.6.57, passing a pointer obtained from png_get_PLTE, png_get_tRNS, or png_get_hIST back into the corresponding setter on the same png_struct/png_info pair causes the setter to read from freed memory and copy its contents into the replacement buffer. The setter frees the internal buffer before copying from the caller-supplied pointer, which now dangles. The freed region may contain stale data (producing silently corrupted chunk metadata) or data from subsequent heap allocations (leaking unrelated heap contents into the chunk struct). This vulnerability is fixed in 1.6.57.
Patch review priority
Assess exposure and vendor guidance
- No higher-priority signal is available in the current stored evidence.
FIRST EPSS: 0.19% · percentile 9.1 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 5.1 · MEDIUM
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-416
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
From (inclusive): 1.0.9
Before (exclusive): 1.6.57
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://github.com/pnggroup/libpng/commit/398cbe3df03f4e11bb031e07f416dfdde3684e8a
Patch
- https://github.com/pnggroup/libpng/commit/55d20aaa322c9274491cda82c5cd4f99b48c6bcc
Patch
- https://github.com/pnggroup/libpng/issues/836
Exploit · Issue Tracking · Mitigation
- https://github.com/pnggroup/libpng/issues/837
Exploit · Issue Tracking · Mitigation
- https://github.com/pnggroup/libpng/security/advisories/GHSA-6fr7-g8h7-v645
Mitigation · Patch · Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2026/05/msg00017.html
Mailing List · Third Party Advisory