CVE-2009-0628 json
Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause a denial of service (memory consumption a…
published 2009-03-27 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-0631
- cvss
- 9.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 80%
- public exploits
- 0
- none known
Summary
Memory leak in the SSLVPN feature in Cisco IOS 12.3 through 12.4 allows remote attackers to cause a denial of service (memory consumption and device crash) by disconnecting an SSL session in an abnormal manner, leading to a Transmission Control Block (TCB) leak.
Exploit prediction
1.93% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:N/C:P/I:P/A:C |
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
cisco.com
/en/US/products/products_security_advisory09186a0080a90424.shtml
vendor-advisory
-
cisco.com
/en/US/products/products_security_advisory09186a0080a90469.shtml
vendor-advisory
-
secunia.com
/advisories/34438
third-party-advisory, vendor-advisory
-
vupen.com
/english/advisories/2009/0851
vdb-entry, vendor-advisory
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12092
vdb-entry, signature
-
securityfocus.com
/bid/34239
vdb-entry
-
securitytracker.com
/id?1021896
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/49427
vdb-entry
Sources
- CVE List CVE-2009-0628
- NVD CVE-2009-0628
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