VulnerabilityDeferred

CVE-2025-11961

pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer.

LOW 1.9EPSS 0.11%

Does this matter?

Lower severity and a low EPSS score (0.11%). Track it; it rarely justifies an emergency change on its own.

Description

pcap_ether_aton() is an auxiliary function in libpcap, it takes a string argument and returns a fixed-size allocated buffer. The string argument must be a well-formed MAC-48 address in one of the supported formats, but this requirement has been poorly documented. If an application calls the function with an argument that deviates from the expected format, the function can read data beyond the end of the provided string and write data beyond the end of the allocated buffer.

CVSS 3.1: 1.9 LOWCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N
EPSS: 0.11% probability · 2th percentile
CISA KEV: Not listed
Weakness: CWE-122, CWE-126
Source: security@tcpdump.org

References

https://github.com/the-tcpdump-group/libpcap/commit/b2d2f9a9a0581c40780bde509f7cc715920f1c02

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.