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CVE-2018-11783

25
FAUCET Score

CVE-2018-11783 is a vulnerability affecting Apache Traffic Server versions 6.0.0-6.0.3, 7.0.0-7.1.5, and 8.0.0-8.0.1, where the sslheaders plugin fails to strip client certificate information from request headers in certain scenarios. This flaw could lead to information disclosure, as indicated by its CVSS v3 score of 7.5 (High) due to its network-based attack vector and low attack complexity, potentially allowing unauthorized access to sensitive data. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.0.0, <= 6.0.3CPE matchmatch criteria
cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
>= 7.0.0, <= 7.1.5CPE matchmatch criteria
cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
>= 8.0.0, <= 8.0.1CPE matchmatch criteria
cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.87%
Probability of exploitation in next 30 days
EPSS Percentile
77.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0187 is in the 60th 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

Remediation records are not available for this CVE.

References

lists.apache.org / thread.html/4f102f943935476732fb1fb653d687c7b69d29d9792f0d6cf72c505e%40%3Cannounce.trafficserver.apache.org%3E
securityfocus.com / bid/107032
Third Party Advisory