CVE-2026-121943
Gravedad CVSS v4.0:
MEDIA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
04/11/2026
Última modificación:
04/11/2026
Descripción
*** Pendiente de traducción *** 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.
Impacto
Puntuación base 4.0
6.30
Gravedad 4.0
MEDIA
Puntuación base 3.x
4.80
Gravedad 3.x
MEDIA
Referencias a soluciones, herramientas e información
- https://github.com/irontec/sngrep/blob/v1.9.0/src/sip.c#L396-L410
- https://github.com/irontec/sngrep/issues/589
- https://hackmd.io/@haindpwn/sngrep-sip-payload-missing-nul-oob-read
- https://www.vulncheck.com/advisories/irontec-sngrep-through-1.9.0-out-of-bounds-stack-read-via-sip-check-packet
- https://hackmd.io/@haindpwn/cve-2026-121943-121944-sngrep-sip-payload-missing-nul-oob-read


