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CVE-2017-10981

20
FAUCET Score

CVE-2017-10981 describes a memory leak vulnerability (CWE-772) in FreeRADIUS versions 2.x prior to 2.2.10, specifically within the fr_dhcp_decode() function. This flaw allows an unauthenticated attacker to remotely trigger a denial of service (DoS) condition. With a CVSS v3 score of 7.5 (HIGH), the vulnerability is easily exploitable over the network with low attack complexity, leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.0CPE matchmatch criteria
cpe:2.3:a:freeradius:freeradius:2.0.0:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:freeradius:freeradius:2.0.0:pre1:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:freeradius:freeradius:2.0.0:pre2:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:freeradius:freeradius:2.0.1:*:*:*:*:*:*:*
2.0.2CPE matchmatch criteria
cpe:2.3:a:freeradius:freeradius:2.0.2:*:*:*:*:*:*:*

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:N/I:N/A:H

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

Exploit Intelligence

EPSS Score
3.37%
Probability of exploitation in next 30 days
EPSS Percentile
87.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0337 is in the 78th percentile among its peer group of 51,553 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, 0.1 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

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: freeradius-0:2.2.6-7.el6_9
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: freeradius
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: freeradius2

Vendor Advisories (1)

redhatCVE-2017-10981Moderate

freeradius: Memory leak in fr_dhcp_decode()

Jul 17, 2017

References

freeradius.org / security/fuzzer-2017.html
PatchVendor Advisory
access.redhat.com / errata/RHSA-2017:1759
debian.org / security/2017/dsa-3930
securityfocus.com / bid/99898
securitytracker.com / id/1038914
Third Party AdvisoryVDB Entry