Read the docs
TI-2026-76183 Aliases CVE-2026-112055GHSA-jf7v-2r7w-h9p9

Stack out-of-bounds read in wvWare wv document parsing

Priority MEDIUM 63CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

wvWare wv through 1.2.9 contains a stack-based out-of-bounds read (CWE-125) in wvGetPAPX_FKP and wvGetCHPX_FKP because the FKP run count is not validated. An attacker who supplies a crafted .doc file with a large crun value can read kilobytes past a 512-byte stack buffer, crashing applications such as AbiWord.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

wvWare wv through 1.2.9 contains a stack-based out-of-bounds read vulnerability in wvGetPAPX_FKP and wvGetCHPX_FKP caused by an unvalidated FKP run count. Attackers can supply a crafted .doc file with a large crun value to read kilobytes past the 512-byte stack buffer, crashing applications like AbiWord.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0018 7th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wvWarewvup to 1.2.9—No fix listedCNA
  • wv VendorwvWare Affected up to 1.2.9 Fixed in — No fix listed CNA

Remediation

No fixed version is listed for wvWare wv. CISA has not added this flaw to KEV, and the sources list no fix.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-112055
  2. 2026-10-18 Alias added: GHSA-jf7v-2r7w-h9p9
  3. 2026-10-19 CISA SSVC decision points changed
  4. 2026-11-06 Affected versions changed · Red Hat
  5. 2026-11-06 CVSS score added · Red Hat

References

Advisory 1

Other 1

  • TI-2004-00586 Buffer overflow in the wvHandleDateTimePicture function in wv library (wvWare) 0.7.4… CVSS 2.0HIGH 10.0
  • TI-2006-03274 Integer overflow in player.c in libwmf 0.2.8.4, as used in multiple products including… CVSS 2.0HIGH 7.5
  • TI-2015-03839 Heap-based buffer overflow in the DecodeImage function in libwmf 0.2.8.4 allows remote… CVSS 2.0MEDIUM 6.8
  • TI-2015-00789 Heap-based buffer overflow in libwmf 0.2.8.4 allows remote attackers to cause a denial of… CVSS 2.0MEDIUM 6.8
  • TI-2006-02140 Integer overflow in wv2 before 0.2.3 might allow context-dependent attackers to execute… CVSS 2.0MEDIUM 6.5
  • TI-2015-03929 meta.h in libwmf 0.2.8.4 allows remote attackers to cause a denial of service… CVSS 2.0MEDIUM 5.0
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences