MEDIUMCVSS v3.1 4.8Vulnerability
CVE-2026-121943
Irontec sngrep through 1.9.0 contains an out-of-bounds stack read vulnerability in sip_check_packet and sip_validate_packet caused by an off-by-one length check on 10240-byte SIP payloads. Remote attackers can send a crafted UDP or TCP SIP packet or supply a pcap file to crash sngrep or leak adjacent stack bytes into displayed SIP fields.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-04T13:33:26.764955+00:00
- Cvss severity
- MEDIUM
- Cvss score
- 4.8
- Retrieved at
- 2026-11-04T13:34:19+00:00
- Score
- 4.8
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-121943
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
- First seen by Signal
- 2026-11-04T13:34:19+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
- Published at
- 2026-11-04T13:17:28.923
- Last modified
- 2026-11-04T13:17:29.060
Related Entities (1)
HAS_WEAKNESS (1)
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