CVE-1999-1216 json
Cisco routers 9.17 and earlier allow remote attackers to bypass security restrictions via certain IP source routed packets that should norm…
published 1993-04-22 33 y ago modified 2026-06-16 4 mo ago also EUVD-1999-1197
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.1%
- EPSS 2.1% chance of exploitation in 30 days, percentile 81%
- public exploits
- 0
- none known
Summary
Cisco routers 9.17 and earlier allow remote attackers to bypass security restrictions via certain IP source routed packets that should normally be denied using the "no ip source-route" command.
Patch / fix
- ciac.llnl.gov/ciac/bulletins/d-15.shtml advisory
- cert.org/advisories/CA-1993-07.html advisory
Exploit prediction
2.08% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
ciac.llnl.gov
/ciac/bulletins/d-15.shtml
third-party-advisory, government-resource, patch, vendor-advisory
-
cert.org
/advisories/CA-1993-07.html
third-party-advisory, patch, us-government-resource
-
exchange.xforce.ibmcloud.com
/vulnerabilities/541
vdb-entry
Sources
- CVE List CVE-1999-1216
- NVD CVE-1999-1216
Fencer Vulns 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.