VulnSocial

CVE-2026-53689Disclosure

LOWCVSS 7.1 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

libnfs through 6.0.2 before 55c18ea does not validate a string size, leading to an integer overflow during a connection to a crafted NFS server. This occurs in libnfs_zdr_string in lib/libnfs-zdr.c.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-1284

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-06-10); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-06-10: 1Mentions · 2026-07-20: 1Patch / Workaround · 2026-07-20: 1Technical Details · 2026-06-10: 1Technical Details · 2026-07-20: 106-1007-20
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-06-101
Disclosure1
2026-07-201
Patch1
Full discourse2 posts
  • Security Arsenal, LLC@SecurityAr58409
    Patch

    🔒 #CyberSecurity CVE-2026-53689: Debian 11 libnfs Integer Overflow — Detection and Patching Guide "A critical security vulnerability has been identified in libnfs, a widely used…" 🔗 https://securityarsenal.com/blog/cve-2026-53689-debian-11-libnfs-integer-overflow-detection-and-patching-guide #CyberSecurity #ThreatIntel #mdr #threathunting #endpointdetection

    Post summary

    The tweet points to a guide that explains how to detect and patch the CVE‑2026‑53689 integer‑overflow flaw in Debian 11 libnfs. No exploit code or active exploitation evidence is mentioned.

    0001078
    19 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-53689 libnfs through 6.0.2 before 55c18ea does not validate a string size, leading to an integer overflow during a connection to a crafted NFS server. This occurs in libnfs… https://www.cve.org/CVERecord?id=CVE-2026-53689

    Post summary

    CVE-2026-53689, an integer overflow in libnfs before 6.0.2 due to unvalidated string size, is disclosed, detailing how a crafted NFS server triggers the vulnerability.

    00000135
    57.6K followersView on X

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