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CVE-2017-11124

30
FAUCET Score

CVE-2017-11124 describes a critical NULL pointer dereference vulnerability in the xar_unserialize function within libxar.so, affecting xar version 1.6.1. This flaw allows an unauthenticated attacker to remotely execute arbitrary code or cause a denial of service with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. Despite its critical CVSS score of 9.8, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.6.1CPE matchmatch criteria
cpe:2.3:a:xar_project:xar:1.6.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.93%
Probability of exploitation in next 30 days
EPSS Percentile
77.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0193 is in the 67th percentile among its peer group of 36,821 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blogs.gentoo.org / ago/2017/06/28/xar-null-pointer-dereference-in-xar_unserialize-archive-c
Third Party AdvisoryVDB Entry
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/2S2KRIILUKBJHXDNYJQQX74TFUQRG5ND
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/YV6RF6VWM7AFYFTTS7VY5TNH26QUEEFC