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
Source GCVE Database
Not known to be exploited · CVSS 8.5 High · fixed in 11.15.08 : patch Netpbm soon.
Data as of 2 Nov 2026, 16:43 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 8.5 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 7.8 |
- Patch
- Available – fixed in 11.15.08, 11.02.30, 10.86.51
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 2 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Upgrade Netpbm and netpbm/netpbm to 11.15.08, 11.02.30 or 10.86.51.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| NetpbmNetpbm | Affected
| Fixed in
|
| NetpbmNetpbm | Affected
| Fixed in
|
| NetpbmNetpbm | Affected
| Fixed in
|
Netpbmnetpbm/netpbmpkg:deb/netpbm/netpbmOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
An integer overflow vulnerability exists in Netpbm versions before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 in the jbigtopnm component. This flaw causes a heap buffer overflow when calculating the output buffer size for multi-plane JBIG files with large header dimensions. Exploitation can lead to application crashes or potentially arbitrary code execution.
References
- nvd.nist.gov/vuln/detail/CVE-2026-120436 (opens in a new tab)
- sourceforge.net/p/netpbm/code/5324 (opens in a new tab)
- svn.code.sf.net/p/netpbm/code/!svn/bc/5323/trunk/converter/other/jbig/jbigtopnm.c (opens in a new tab)
- svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY (opens in a new tab)
- svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY (opens in a new tab)
- svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY (opens in a new tab)
- vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-heap-overflow-via-jbigtopnm (opens in a new tab)