VulnSocial

CVE-2026-5676Disclosure

LOWCVSS 5.5 · MEDIUM

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Patch affected systems immediately
  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

A vulnerability was identified in Totolink A8000R 5.9c.681_B20180413. This issue affects the function setLanguageCfg of the file /cgi-bin/cstecgi.cgi. Such manipulation of the argument langType leads to missing authentication. The attack can be launched remotely. The exploit is publicly available and might be used.

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2.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-287CWE-306

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Public PoC is present in monitored signal
  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • PoC mentioned or linked in 1 signal
  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-07); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-07: 1Mentions · 2026-04-28: 1PoC Mentioned / Linked · 2026-04-28: 1Patch / Workaround · 2026-04-28: 1Technical Details · 2026-04-07: 1Technical Details · 2026-04-28: 104-0704-28
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets1 URL
By indicator
Classification over time
DateTotalLabels
2026-04-071
Disclosure1
2026-04-281
Patch1
Full discourse2 posts
  • Giuseppe Paternicola@giuseppe_1337
    Patch

    🚨 HIGH severity CVE-2026-5676 (CVSS 7.3) affects Totolink A8000R routers. Missing authentication in setLanguageCfg function allows remote attacks. Exploit publicly available. Patch immediately if using v5.9c.681_B20180413. #CVE #Vulnerability #PatchNow https://t.co/NyUEVKMBOR

    Post summary

    The tweet warns that CVE‑2026‑5676 allows remote attacks on Totolink A8000R routers, notes a publicly available exploit, and urges users to patch immediately with the given firmware version.

    0000053
    27 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-5676 Unauthenticated Remote Command Injection in Totolink A8000R 5.9c.681_B20180413 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-5676

    Post summary

    The post announces a new CVE (unauthenticated remote command injection in Totolink routers) without mentioning exploitation or patching.

    0000051
    4.0K followersView on X

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