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No exploitation reported

CVE-2026-48173

Buffer Overwrite via NAS Message Length Validation Flaw in Samsung Exynos Processors

No exploitation reported by the sources we read.

  • Published2026-11-05
  • WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In the NAS message handler, improper validation of the length field in NAS message causes memory corruption

Timeline

dates in UTC
  1. 2026-11-0502:43CVE publishedCNA

Versions per branch

Products declared by the CNA

As samsungsemiconductor, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Samsung Semiconductor Exynos 850other versions: not affected
    Affected
    • < September 2026fixed in September 2026date
  • Samsung Semiconductor Exynos 2100other versions: not affected
    Affected
    • < September 2026fixed in September 2026date
  • Samsung Semiconductor Exynos 1280other versions: not affected
    Affected
    • < September 2026fixed in September 2026date
  • Samsung Semiconductor Exynos 2200other versions: not affected
    Affected
    • < September 2026fixed in September 2026date
  • Samsung Semiconductor Exynos 1330other versions: not affected
    Affected
    • < September 2026fixed in September 2026date
  • Samsung Semiconductor Exynos 1380other versions: not affected
    Affected
    • < September 2026fixed in September 2026date

13 more products in the CVE record.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-05

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-48173 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-11-05
Last Modified
2026-11-10
NVD status
Deferred
GitHub Advisory
GHSA-r3gq-g37j-r82w

Frequently asked questions

What is CVE-2026-48173?

In the NAS message handler, improper validation of the length field in NAS message causes memory corruption

Is CVE-2026-48173 actively exploited?

Active exploitation of CVE-2026-48173 has not been confirmed. Its EPSS score was 0.1% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-48173?

CVE-2026-48173 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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