CVE-2009-4455

mediumpriority · track · 26EPSS 0.013 · 70 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.31% (70th) EPSS

CVSS 6.5 · medium

Is it mine?

7 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-28

The default configuration of Cisco ASA 5500 Series Adaptive Security Appliance (Cisco ASA) 7.0, 7.1, 7.2, 8.0, 8.1, and 8.2 allows portal traffic to access arbitrary backend servers, which might allow remote authenticated users to bypass intended access restrictions and access unauthorized web sites via a crafted URL obfuscated with ROT13 and a certain encoding. NOTE: this issue was originally reported as a vulnerability related to lack of restrictions to URLs listed in the Cisco WebVPN bookmark component, but the vendor states that "The bookmark feature is not a security feature."

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8 · impact 6.4

v2.05.5mediumAV:N/AC:L/Au:S/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-264USprimary

affected products (7)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
cisco adaptive security appliance 5500= 7.0nvdUScpe:2.3:h:cisco:adaptive_security_appliance_5500:*:*:*:*:*:*:*:*
cisco adaptive security appliance 5500= 7.1nvdUScpe:2.3:h:cisco:adaptive_security_appliance_5500:*:*:*:*:*:*:*:*
cisco adaptive security appliance 5500= 7.2nvdUScpe:2.3:h:cisco:adaptive_security_appliance_5500:*:*:*:*:*:*:*:*
cisco adaptive security appliance 5500= 8.0nvdUScpe:2.3:h:cisco:adaptive_security_appliance_5500:*:*:*:*:*:*:*:*
cisco adaptive security appliance 5500= 8.1nvdUScpe:2.3:h:cisco:adaptive_security_appliance_5500:*:*:*:*:*:*:*:*
cisco adaptive security appliance 5500= 8.2nvdUScpe:2.3:h:cisco:adaptive_security_appliance_5500:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2009-12-29modified 2026-06-16

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+8950 more

references (12)

External citations — patches, advisories, analysis.

scry

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