CVE-2020-11810
An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet
02 Description
An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.65% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 76.1% of scored records. A rank, not a probability.
- NVD base score
- 3.7 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-04-27 14:47Z6 YR AGO
- Last updated
- 2024-08-04 11:42Z2 YR AGO
- Reserved
- 2020-04-15
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.1
- Document digest
- fbbe3c5c8a361daa2eed8200d15001d0f9301d65c525f3a5fbf5914dc622e2b1
05 Affected products
06 References
- github.comhttps://github.com/OpenVPN/openvpn/commit/37bc691e7d26ea4eb61a8a434ebd7a9ae76225ab
- security-tracker.debian.orghttps://security-tracker.debian.org/tracker/CVE-2020-11810
- bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=1169925
- community.openvpn.nethttps://community.openvpn.net/openvpn/ticket/1272
- patchwork.openvpn.nethttps://patchwork.openvpn.net/patch/1079/
- lists.fedoraproject.orgFEDORA-2020-c1cb4ebcd9https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FGHHV4YZANZW45KZTJJGVGPFMSXYRCKZ/
- lists.fedoraproject.orgFEDORA-2020-969414e05bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JII7RYYYRBPQNEGGVSOXCM7JUZ43T3VH/
- lists.debian.org[debian-lts-announce] 20220503 [SECURITY] [DLA 2992-1] openvpn security updatehttps://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
07 Fixed in
Arch Linux
- openvpn Fixed in 2.4.9-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- openvpn Fixed in 2.4.9-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- openvpn Fixed in 2.4.9-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- openvpn Fixed in 2.4.9-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- openvpn Fixed in 2.4.4-2ubuntu1.5
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- openvpn Fixed in 2.4.7-1ubuntu2.20.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.