VulnSocial

CVE-2026-7750Disclosure

LOWCVSS 7.4 · HIGH

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 detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. The manipulation of the argument mac_address results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.

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2.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-119CWE-120

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
  • 4 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 3 signals
  • Disclosure: 3 classified signals
  • Exploit: 1 classified signal
  • Peaked 1d ago at 3 mentions (2026-05-04); latest day: 1
  • 4 total mentions across 2 days

Deep dive

Activity timeline4 mentions / 2d
01223Mentions · 2026-05-04: 3Mentions · 2026-05-24: 1PoC Mentioned / Linked · 2026-05-24: 1Patch / Workaround · 2026-05-24: 1Technical Details · 2026-05-04: 2Technical Details · 2026-05-24: 105-0405-24
Signal classification2 categories
Disclosure
375.0%
Exploit
125.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-05-043
Disclosure3
2026-05-241
Exploit1
Full discourse4 posts
  • DFIR Lab@DFIR_Lab
    Exploit

    🚨 HIGH: CVE-2026-7750 (CVSS 8.8) - Buffer overflow in Totolink N300RH router v3.2.4. Remotely exploitable via POST request to /cgi-bin/cstecgi[.]cgi. Exploit is public. Patch immediately. #CVE #Vulnerability #PatchNow https://t.co/KlunHAkNJs

    Post summary

    The tweet announces a high‑severity CVE with a publicly available exploit for the Totolink N300RH router, urges immediate patching, but does not provide detailed exploit code or evidence of active exploitation.

    0000089
    30 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-7750 A vulnerability was detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the compo… https://www.cve.org/CVERecord?id=CVE-2026-7750 ----- Traducción: CVE-2026-7750 Se … http://infoflow.cloud`

    Post summary

    The post flags CVE-2026‑7750 as discovered in a Totolink router, describing the affected function but offering no proof of exploitation, code, or remediation.

    0000029
    75 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-7750 A vulnerability was detected in Totolink N300RH 3.2.4-B20220812. This vulnerability affects the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the compo… https://www.cve.org/CVERecord?id=CVE-2026-7750

    Post summary

    A new vulnerability (CVE-2026-7750) has been detected in Totolink N300RH; only limited functional details are provided with no evidence of exploitation or remediation.

    00000164
    57.4K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-7750 Buffer Overflow in Totolink N300RH 3.2.4-B20220812 POST Request Handler https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-7750

    Post summary

    The text announces a buffer overflow vulnerability in the Totolink N300RH router firmware, providing product, version, and technical details.

    0000049
    4.0K followersView on X

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