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CVE-2018-0486

23
FAUCET Score

CVE-2018-0486 describes a digital signature mishandling vulnerability in Shibboleth XMLTooling-C before 1.6.3, affecting Shibboleth Service Provider before 2.6.0 on Windows and other products. This flaw allows remote attackers to obtain sensitive user attribute data or conduct impersonation attacks through a crafted DTD. With a CVSS score of 6.5 (Medium), it has a low attack complexity and does not require user interaction, posing a risk to confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.6.3CPE matchmatch criteria
cpe:2.3:a:shibboleth:xmltooling-c:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.53%
Probability of exploitation in next 30 days
EPSS Percentile
72.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0153 is in the 55th percentile among its peer group of 23,703 CVEs.

Social Chatter

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

No media coverage found for this CVE.

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

Remediation

Vendor Advisories (1)

redhatCVE-2018-0486Important

xmltooling: impersonation attack and sensitive information disclosure in the Service Provider via crafted DTD

Jan 12, 2018

References

lists.debian.org / debian-lts-announce/2018/01/msg00016.html
Mailing ListThird Party Advisory
lists.debian.org / debian-security-announce/2018/msg00007.html
Mailing ListThird Party Advisory
shibboleth.net / community/advisories/secadv_20180112.txt
Vendor Advisory
debian.org / security/2018/dsa-4085
Third Party Advisory
securitytracker.com / id/1040177
Third Party AdvisoryVDB Entry