CVE-2026-120432
Netpbm before 10.86.51, 11.02.30, and 11.15.08 Integer Overflow in winicontopam
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Netpbm before 10.86.51, 11.02.30, and 11.15.08 Integer Overflow in winicontopam
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.
- Record
CVE-2026-120432- CVSS 4.0
- 8.5 High
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 - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-190
- Updated
- 2026-11-02
EUVDEUVD-2026-115241
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.
- Record
EUVD-2026-115241- CVSS 4.0
- 8.5 High
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 - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-53w3-xv39-2p7m
Netpbm before 10.86.51, 11.02.30, and 11.15.08 contains an integer overflow vulnerability in...
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.
- Record
GHSA-53w3-xv39-2p7m- CVSS 4.0
- 8.5 High
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 - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-190
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-120432- CVSS 4.0
- 8.5 High
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 - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-190
- Updated
- 2026-11-03
OSVDEBIAN-CVE-2026-120432
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.
- Record
DEBIAN-CVE-2026-120432- CVSS 4.0
- 8.5 High
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 - Updated
- 2026-11-04
OSVUBUNTU-CVE-2026-120432
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.
- Record
UBUNTU-CVE-2026-120432- CVSS 4.0
- 8.5 High
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 - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-05
OSVopenSUSE-SU-2026:12463-1 No score
libnetpbm-devel-11.16.1-2.1 on GA media
These are all security issues fixed in the libnetpbm-devel-11.16.1-2.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:12463-1- Updated
- 2026-11-07
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
netpbm-freeDebian:12 |
All versions, plus listed versions 2:11.01.00-22:11.03.00-12:11.03.00-22:11.03.00-32:11.03.06-1 Show 33 moreShow less2:11.04.05-12:11.04.05-22:11.05.01-12:11.05.01-22:11.05.01-32:11.05.02-12:11.05.02-1.12:11.05.02-1.1~exp12:11.05.03-12:11.06.00-12:11.06.01-12:11.06.01-22:11.07.00-12:11.07.00-22:11.07.01-12:11.08.00-12:11.08.01-12:11.08.02-12:11.09.02-12:11.09.02-22:11.09.03-12:11.10.02-12:11.11.00-12:11.11.00-22:11.11.01-12:11.12.00-12:11.13.00-12:11.13.00-22:11.13.00-32:11.13.03+ds-12:11.13.03+ds-22:11.13.03-12:11.15.04+ds-1 |
None known |
netpbm-freeDebian:13 |
All versions, plus listed versions 2:11.10.02-12:11.11.00-12:11.11.00-22:11.11.01-12:11.12.00-1 Show 7 moreShow less2:11.13.00-12:11.13.00-22:11.13.00-32:11.13.03+ds-12:11.13.03+ds-22:11.13.03-12:11.15.04+ds-1 |
None known |
netpbm-freeDebian:14 |
All versions, plus listed versions 2:11.10.02-12:11.11.00-12:11.11.00-22:11.11.01-12:11.12.00-1 Show 7 moreShow less2:11.13.00-12:11.13.00-22:11.13.00-32:11.13.03+ds-12:11.13.03+ds-22:11.13.03-12:11.15.04+ds-1 |
None known |
netpbm-freeUbuntu:16.04:LTS |
All versions, plus listed versions 2:10.0-15.22:10.0-15.3 |
None known |
netpbm-freeUbuntu:18.04:LTS |
All versions, plus listed versions 2:10.0-15.3build1 |
None known |
netpbm-freeUbuntu:20.04:LTS |
All versions, plus listed versions 2:10.0-15.3build1 |
None known |
netpbm-freeUbuntu:22.04:LTS |
All versions, plus listed versions 2:10.0-15.4 |
None known |
netpbm-freeUbuntu:24.04:LTS |
All versions, plus listed versions 2:11.01.00-2build12:11.03.06-12:11.04.05-22:11.05.01-32:11.05.02-12:11.05.02-1.12:11.05.02-1.1build1 |
None known |
netpbm-freeUbuntu:26.10 |
All versions, plus listed versions 2:11.10.02-1build12:11.13.03+ds-2 |
None known |
netpbm-freeUbuntu:26.04:LTS |
All versions, plus listed versions 2:11.10.02-1build1 |
None known |
netpbmopenSUSE:Tumbleweed From an advisory covering 7 CVEs |
before 11.16.1-2.1 | 11.16.1-2.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| affected, aliases, references | OSV | |
| affected, aliases, facts, references | EUVD, NVD, OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-120432 is a high vulnerability (CVSS 8.5) in Netpbm, published November 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.17%, the 6th percentile. No source names a fixed version.
References
sourceforge.net/p/netpbm/code/5335
svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY
vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-integer-overflow-in-winicontopam
Show 12 moreShow less
nvd.nist.gov/vuln/detail/CVE-2026-120432
github.com/advisories/GHSA-53w3-xv39-2p7m
security-tracker.debian.org/tracker/CVE-2026-120432
ubuntu.com/security/CVE-2026-120432
cve.org/CVERecord?id=CVE-2026-120432
suse.com/security/cve/CVE-2026-120431