CVE-2026-31912 (GCVE-0-2026-31912)
Vulnerability from cvelistv5 – Published: 2026-09-05 18:49 – Updated: 2026-09-08 18:21
VLAI
EPSS
VEX
Title
OOBR in libpcap before 1.10.7
Summary
libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a return instruction nor executing a jump instruction with an offset that translates to a pointer outside of the buffer. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading the OS process memory in the 32GiB around the buffer on 64-bit architectures and in the entire address space on 32-bit architectures.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 18:21 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/the-tcpdump-group/libpcap/comm… | patch |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| The Tcpdump Group | libpcap |
Affected:
0 , < 1.10.7
(semver)
|
guessed |
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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