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No exploitation reportedAwaiting NVD analysis

CVE-2026-120435

Netpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow in xpmtoppm

No exploitation reported by the sources we read.

  • Published2026-11-02
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains a heap buffer overflow in xpmtoppm caused by an unvalidated characters-per-pixel value in the XPM header. Attackers can supply a crafted XPM file with characters-per-pixel greater than 3 to overrun fixed 3-byte colorName hash entries, causing crashes or potentially code execution.

Timeline

dates in UTC
  1. 2026-11-0214:28CVE publishedCNA

Observed activity

isMalicious corpus · updated 2026-11-02 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-120435?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-120435?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

Products declared by the CNA

As VulnCheck, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Netpbmother versions: not affected
    Affected
    • < 10.86.51fixed in 10.86.51custom
    • ≥ 11.0, < 11.02.30fixed in 11.02.30custom
    • ≥ 11.03, < 11.15.08fixed in 11.15.08custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-02

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-120435 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 4.08.52026-11-02
  • CNACVSS 3.17.82026-11-02
  • NVDCVSS 3.17.8read 2026-11-02
  • CNAweakness (CWE)CWE-7872026-11-02
  • NVDweakness (CWE)CWE-787read 2026-11-02
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-11-02
Last Modified
2026-11-02
NVD status
Received
GitHub Advisory
GHSA-9wp8-mmj7-87m8

Frequently asked questions

What is CVE-2026-120435?

Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains a heap buffer overflow in xpmtoppm caused by an unvalidated characters-per-pixel value in the XPM header. Attackers can supply a crafted XPM file with characters-per-pixel greater than 3 to overrun fixed 3-byte colorName hash entries, causing crashes or potentially code execution.

Is CVE-2026-120435 actively exploited?

Active exploitation of CVE-2026-120435 has not been confirmed.

What is the CVSS score for CVE-2026-120435?

CVE-2026-120435 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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