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CVE-2017-10983

22
FAUCET Score

CVE-2017-10983 is a denial-of-service vulnerability affecting FreeRADIUS versions 2.x before 2.2.10 and 3.x before 3.0.15. This flaw, categorized as a read overflow (CWE-119) when decoding DHCP option 63, can be triggered remotely without authentication. With a CVSS score of 7.5 (High), successful exploitation leads to a denial of service. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

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
3.38%
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 0.0338 is in the 78th 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

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: freeradius-0:2.2.6-7.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: freeradius-0:3.0.13-8.el7_4
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-2017-10983Moderate

freeradius: Out-of-bounds read in fr_dhcp_decode() when decoding option 63

Jul 17, 2017

References

freeradius.org / security/fuzzer-2017.html
PatchVendor Advisory
access.redhat.com / errata/RHSA-2017:1759
access.redhat.com / errata/RHSA-2017:2389
debian.org / security/2017/dsa-3930
securityfocus.com / bid/99915
securitytracker.com / id/1038914
Third Party AdvisoryVDB Entry