MEDIUM
CVE-2026-9531
CWE-77Published: May 26, 2026· Updated: May 28, 2026
6.3
CVSS v3.1
EPSS:2.95%probability of exploitation in 30 daysPercentile:86.6th
Official Description
A weakness has been identified in Totolink CA750-PoE 6.2c.510. Impacted is the function setUpgradeUboot of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
Technical Analysis
CVE-2026-9531 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
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Rapid7 / Metasploit
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PacketStorm
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NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (6)
Quick Facts
CVE IDCVE-2026-9531
CVSS Score6.3 / 10
SeverityMEDIUM
WeaknessCWE-77
CISA KEVNo
EPSS (30d)2.95%
PublishedMay 26, 2026
Related CVEs (CWE-77)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-9531 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.