CVE-2007-2270

Linksys SPA941 - Denial of Service via SIP INVITE From Header

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2007-2270. PoCs published by MADYNES.

AI-analyzed exploit summary This exploit targets CVE-2007-2270, a SIP INVITE message handling vulnerability in certain VoIP software. It sends a malformed SIP INVITE message to trigger a denial-of-service condition by flooding the target with UDP packets.

Description

The Linksys SPA941 VoIP Phone allows remote attackers to cause a denial of service (device reboot) via a 0377 (0xff) character in the From header, and possibly certain other locations, in a SIP INVITE request.

Exploits (2)

exploitdb WORKING POC VERIFIED
by MADYNES · perldoshardware
https://www.exploit-db.com/exploits/3792

This exploit targets CVE-2007-2270, a SIP INVITE message handling vulnerability in certain VoIP software. It sends a malformed SIP INVITE message to trigger a denial-of-service condition by flooding the target with UDP packets.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: SIP-based VoIP software (e.g., Asterisk, other SIP implementations)
No auth needed
Prerequisites: Network access to the target SIP server · UDP port 5060 accessible
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by MADYNES · perldoshardware
https://www.exploit-db.com/exploits/3791

This exploit sends a malformed SIP INVITE request via UDP to trigger a denial-of-service (DoS) condition in vulnerable Linksys devices. The payload contains invalid characters (0xFF) to exploit a parsing vulnerability in the SIP stack.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Linksys SIP-enabled devices (e.g., PAP2, RTP300)
No auth needed
Prerequisites: Network access to the target device · UDP port 5060 (SIP) reachable
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (8)

Core 8
Core References
Mailing List mailing-list x_refsource_fulldisc
http://lists.grok.org.uk/pipermail/full-disclosure/2007-April/053959.html
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/23619
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/33856
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/3791
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/25031
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id?1017957
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/3792
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2007/1532

Scores

EPSS 0.0936
EPSS Percentile 94.8%

Details

Status published
Products (1)
linksys/spa941
Published Apr 25, 2007
Tracked Since Feb 18, 2026