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Fencer Intel
high 7.8

CVE-2026-120436 json

Netpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow via jbigtopnm

published 7d ago modified 7d ago also EUVD-2026-115196

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains an integer overflow in jbigtopnm that causes heap buffer overflow when computing output buffer size. Attackers can supply a crafted multi-plane JBIG file with large header dimensions so jbg_dec_merge_planes() overflows the undersized buffer, causing crashes or potentially code execution.

Patch / fix

  • Netpbm Netpbm 10.86.51, 11.02.30, 11.15.08
  • netpbm openSUSE Tumbleweed 11.16.1-2.1

opensuse advisories openSUSE-SU-2026:12463-1

Is CVE-2026-120436 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-120436 updated cvss 7.8

netpbm: netpbm: Arbitrary code execution via integer overflow in jbigtopnm

  • Red Hat Enterprise Linux 6 netpbm-progs, netpbm 11.09.00-1.el10 Red Hat Enterprise Linux 7 netpbm-progs, netpbm 11.09.00-1.el10 Red Hat Enterprise Linux 8 netpbm-progs, netpbm 11.09.00-1.el10 Red Hat Enterprise Linux 10 netpbm 11.09.00-1.el10
    affected: workaround, no fix available
  • Red Hat Enterprise Linux 9 netpbm-progs, netpbm 11.09.00-1.el10
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
7d ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 8.5 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
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 4.0 8.5 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

Affected products

  • Netpbm Netpbm

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.