CVE-2026-4537
CVE-2026-4537 is a medium-severity vulnerability with a CVSS 3.x base score of 4.7. Its EPSS exploit-prediction score of 10% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-74.
Key facts
- Severity: Medium (CVSS 3.x base score 4.7)
- CVSS v2: 5.8
- CVSS v4: 2.0
- EPSS exploit prediction: 10% (95th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-14277
- Weakness: CWE-74
- Published:
- Last modified:
Description
A vulnerability was determined in Cudy TR1200 R46-2.4.15-20250721-164017. Impacted is the function action_ipsec_conn of the file /usr/bin/lib/lua/luci/controller/ipsec.lua. Executing a manipulation can lead to command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. Upgrading the affected component is advised. The vendor explains, that "some other customer has reported this to us before. And we have fixed this."
Frequently asked questions
- What is CVE-2026-4537?
- A vulnerability was determined in Cudy TR1200 R46-2.4.15-20250721-164017. Impacted is the function action_ipsec_conn of the file /usr/bin/lib/lua/luci/controller/ipsec.lua. Executing a manipulation can lead to command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. Upgrading the affected component is advised. The vendor explains, that "some other customer has reported this to us before. And we have fixed this."
- How severe is CVE-2026-4537?
- CVE-2026-4537 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2026-4537 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-4537?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-4537 have an EU (EUVD) identifier?
- Yes. CVE-2026-4537 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14277.
- When was CVE-2026-4537 published?
- CVE-2026-4537 was published on 2026-03-22 and last updated on 2026-06-17.
References
- https://github.com/qazmn/my_cve/blob/main/cudy_cve/Cudy_TR1200_Command_Injection.md
- https://vuldb.com/submit/774447
- https://vuldb.com/vuln/352325
- https://vuldb.com/vuln/352325/cti
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