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CVE-2010-2836

HIGH · CVSS 7.8EPSS 1.8%EU EUVD

Memory leak in the SSL VPN feature in Cisco IOS 12.4, 15.0, and 15.1, when HTTP port redirection is enabled, allows remote attackers to cause a denial of service (memory consumption) by improperly disconnecting SSL sessions, leading to connections that remain in the CLOSE-WAIT state, aka Bug ID CSCtg21685.

Key facts

CVSS score
7.8 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE)
CWE-399
EPSS score
1.8% (78th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2010-2840)
Published
September 23, 2010
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2010-2840 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / ios
  • cisco / ios
  • cisco / ios
  • cisco / ios
  • cisco / ios
  • cisco / ios
  • cisco / ios
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  • cisco / ios
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  • cisco / ios
  • cisco / ios
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  • cisco / ios
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  • cisco / ios
  • cisco / ios

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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