CVE-2023-53676

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-10-07. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Linux kernel, the following vulnerability has been resolved:

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()

The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iSCSI connection in a session without checking for the buffer length. With enough iSCSI connections it's possible to overflow the buffer provided by configfs and corrupt the memory.

This patch replaces sprintf() with sysfs_emit_at() that checks for buffer boundries.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

October 7, 2025

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083
generic

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a
generic

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4
generic

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2
generic

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d
generic

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6
generic

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc
generic

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 4.14.326osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 110 total refreshes for this CVE.

  1. 2026-08-05 19:15 UTCEPSS rescore
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  3. 2026-08-05 10:16 UTCEG score recompute
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Frequently asked(5)

What is CVE-2023-53676?
CVE-2023-53676 is a high vulnerability published on October 7, 2025. In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix buffer overflow in liotargetnaclinfoshow() The function liotargetnaclinfoshow() uses sprintf() in a loop to print details for every iSCSI connection in a session without checking for the buffer length. With…
When was CVE-2023-53676 disclosed?
CVE-2023-53676 was first published in the National Vulnerability Database on October 7, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-53676 actively exploited?
CVE-2023-53676 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 78.2% of all scored CVEs.
What is the CVSS score of CVE-2023-53676?
CVE-2023-53676 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2023-53676?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-53676, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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