Adri van Os Antiword up to 0.37 FKP Run Count Parsing prop8.c vGet8PapInfo/vGet8ChrInfo stack-based overflow

Summaryinfo

A vulnerability classified as problematic has been found in Adri van Os Antiword up to 0.37. This impacts the function vGet8PapInfo/vGet8ChrInfo of the file prop8.c of the component FKP Run Count Parsing. This manipulation causes stack-based overflow. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is handled as CVE-2026-111678. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability was found in Adri van Os Antiword up to 0.37. It has been declared as problematic. Affected by this vulnerability is the function vGet8PapInfo/vGet8ChrInfo of the file prop8.c of the component FKP Run Count Parsing. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect availability. The summary by CVE is:

Antiword through 0.37 contains a stack out-of-bounds read vulnerability in vGet8PapInfo and vGet8ChrInfo in prop8.c because FKP run counts and grpprl offsets are not bounded. Attackers can supply a crafted .doc file with malicious FKP pages to read past the 512-byte stack buffer, crashing antiword or corrupting style parsing.

The advisory is shared at hackmd.io. This vulnerability is known as CVE-2026-111678 since 10/16/2026. The exploitation appears to be easy. An attack has to be approached locally. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Adri van Os

Name

• Antiword

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31
• 0.32
• 0.33
• 0.34
• 0.35
• 0.36
• 0.37

Support

• end of life

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion