CVE-2020-26131 json
Issues were discovered in Open DHCP Server (Regular) 1.75 and Open DHCP Server (LDAP Based) 0.1Beta.
published 2020-10-28 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-18761
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
Issues were discovered in Open DHCP Server (Regular) 1.75 and Open DHCP Server (LDAP Based) 0.1Beta. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the OpenDHCPServer.exe (Regular) or the OpenDHCPLdap.exe (LDAP Based) binary.
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/an0ry/advisories referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-732 Incorrect Permission Assignment for Critical Resource
References
-
github.com
/an0ry/advisories
exploit, third-party-advisory
-
sourceforge.net
/projects/dhcpserver/
product
- github.com /OffensiveOceloot/advisories/blob/main/CVE-2020-26131.md
Sources
- CVE List CVE-2020-26131
- NVD CVE-2020-26131
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