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CVE-2018-0410

30
FAUCET Score

CVE-2018-0410 describes a denial-of-service vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliances. An unauthenticated, remote attacker can exploit this by establishing numerous TCP connections, leading to memory exhaustion and system unresponsiveness. This vulnerability carries a high CVSS score of 8.6 due to its network-based attack vector, low attack complexity, and high impact on availability, potentially requiring manual intervention for recovery. Despite its severity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
9.1.1-074CPE matchmatch criteria
cpe:2.3:a:cisco:web_security_appliance:9.1.1-074:*:*:*:*:*:*:*
9.1.2-010CPE matchmatch criteria
cpe:2.3:a:cisco:web_security_appliance:9.1.2-010:*:*:*:*:*:*:*
9.1.2-022CPE matchmatch criteria
cpe:2.3:a:cisco:web_security_appliance:9.1.2-022:*:*:*:*:*:*:*
9.1.2-039CPE matchmatch criteria
cpe:2.3:a:cisco:web_security_appliance:9.1.2-039:*:*:*:*:*:*:*
10.1.0-204CPE matchmatch criteria
cpe:2.3:a:cisco:web_security_appliance:10.1.0-204:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.6HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.12%
Probability of exploitation in next 30 days
EPSS Percentile
89.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0412 is in the 82nd percentile among its peer group of 51,553 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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-20180815-wsa-dos
Vendor Advisory
securityfocus.com / bid/105098
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041535
Third Party AdvisoryVDB Entry