CVE-2009-5140 json
The SIP implementation on the Linksys SPA2102 phone adapter provides hashed credentials in a response to an invalid authentication challeng…
published 6y ago modified 4mo ago also EUVD-2009-5095
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
The SIP implementation on the Linksys SPA2102 phone adapter provides hashed credentials in a response to an invalid authentication challenge, which makes it easier for remote attackers to obtain access via a brute-force attack, related to a "SIP Digest Leak" issue.
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1.36% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-307 Improper Restriction of Excessive Authentication Attempts
References
-
resources.enablesecurity.com
/resources/sipdigestleak-tut.pdf
mailing-list, third-party-advisory
-
voipsa.org
/pipermail/voipsec_voipsa.org/2009-April/002946.html
mailing-list, third-party-advisory
Sources
- CVE List CVE-2009-5140
- NVD CVE-2009-5140
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.