CVE-2026-120432

LOWCVSS 8.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Netpbm before 10.86.51, 11.02.30, and 11.15.08 contains an integer overflow vulnerability in winicontopam that allows attackers to corrupt heap memory via oversized ICO/CUR dimensions. Attackers can supply a crafted icon file with width or height above 32767, wrapping int16_t loop counters into negative row buffer indices to cause crashes or potential code execution.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-190

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Full discourse1 post

Upwind Security MDR@UpwindMDR18h
🚨 High – Netpbm triple threat (CVE-2026-120432 / 120433 / 120436) winicontopam mishandles ICO/CUR width/height >32767 causing int16_t overflow and heap corruption. picttoppm allows PICT polygons >100 points to overflow the stack in paintPoly(). jbigtopnm suffers an integer overflow on large multi-plane JBIG files leading to heap buffer overflow. All can crash or lead to RCE on crafted files. 👉 Affected: Netpbm < 10.86.51 / < 11.02.30 / < 11.15.08 – upgrade to fixed versions.
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