CVE-2013-5557

Name: CVE-2013-5557
Creator: NVD / NIST
Published: 2015-02-07T04:59:00.047+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.01%

Last modified Jun 16, 2026

CVE-2013-5557 is a vulnerability of currently unknown severity. The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of service (device crash or error-recovery event) via an HTTP request that triggers a rewrite, aka Bug ID CSCug91577.. EPSS estimates a 2.01% chance of exploitation in the next 30 days.

Description

The Proxy Bypass Content Rewriter feature in the WebVPN subsystem in Cisco Adaptive Security Appliance (ASA) Software 9.1(.2) and earlier allows remote authenticated users to cause a denial of service (device crash or error-recovery event) via an HTTP request that triggers a rewrite, aka Bug ID CSCug91577.

Metrics

EPSS Probability

2.01%

78.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Cisco	Adaptive Security Appliance Software	<= 9.1\(2\)

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5557Broken Link, Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=37383Vendor Advisory
http://www.securityfocus.com/bid/72529Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/100694Third Party Advisory, VDB Entry
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5557Broken Link, Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=37383Vendor Advisory
http://www.securityfocus.com/bid/72529Third Party Advisory, VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/100694Third Party Advisory, VDB Entry

Timeline

Published: Feb 7, 2015
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-5557?

How severe is CVE-2013-5557?

Severity scoring for CVE-2013-5557 is pending analysis. The EPSS model estimates a 2.01% probability of exploitation in the next 30 days.

How do I fix CVE-2013-5557?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-5557?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST