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CVE-2023-2860

16
FAUCET Score

CVE-2023-2860 is an out-of-bounds read vulnerability in the Linux kernel's SR-IPv6 implementation, specifically affecting the processing of seg6 attributes. This flaw, caused by improper validation of user-supplied data, allows a privileged local user to read beyond an allocated buffer, potentially disclosing sensitive information. Rated Medium severity (CVSS 4.4), it requires high privileges for exploitation and has a low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.19.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
0.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 73rd percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 (5)

microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 5.15.126.1-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 5.15.126.1-1
microsoftpatch availablevia msrc
Product: 17832-16823Fixed in: 5.15.126.1-1
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.126.1-1 on CBL Mariner 2.0Fixed in: 5.15.126.1-1
redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (3)

microsoft2023-Aug/CVE-2023-2860

CVE-2023-2860

Aug 8, 2023
microsoft2023-Jul/CVE-2023-2860Moderate

Out-of-bounds read when setting hmac data

Jul 11, 2023
redhatCVE-2023-2860Moderate

kernel: ipv6: sr: out-of-bounds read when setting HMAC data

Sep 5, 2022

References

access.redhat.com / security/cve/CVE-2023-2860
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatch
zerodayinitiative.com / advisories/ZDI-CAN-18511
Third Party AdvisoryVDB Entry