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CVE-2016-1288

16
FAUCET Score

CVE-2016-1288 describes a denial-of-service vulnerability affecting the HTTPS Proxy feature in Cisco Web Security Appliance (WSA) devices running AsyncOS versions prior to 8.5.3-051 and 9.x prior to 9.0.0-485. This medium-severity flaw, with a CVSS score of 5.3, allows unauthenticated remote attackers to cause a service outage by sending a malformed HTTPS request, provided they have certain intranet connectivity. While there is no evidence of active exploitation, public exploit code, or Metasploit modules, the vulnerability has received limited community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
9.0.0-193CPE matchmatch criteria
cpe:2.3:a:cisco:web_security_appliance:9.0.0-193:*:*:*:*:*:*:*
8.5.0-497CPE matchmatch criteria
cpe:2.3:o:cisco:web_security_appliance:8.5.0-497:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.74%
Probability of exploitation in next 30 days
EPSS Percentile
75.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0174 is in the 61st percentile among its peer group of 23,723 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-wsa
Vendor Advisory
securitytracker.com / id/1035163