7.2

CVE-2026-84471: openvpn Use After Free

CVSS: 7.2v4.0HighAwaiting analysis
AliasesUBUNTU-CVE-2026-84471DEBIAN-CVE-2026-84471
Published 14-10-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-84471 is a high (CVSS 7.2) Use After Free vulnerability in openvpn. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 33.6% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v4.0 (CVE.org)
EPSS score
0.41%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0498USN-8852-1

Timeline

  1. 14-10-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

Description

The fix for CVE-2026-12996 was incomplete. A use-after-free in OpenVPN 2.6.0 through 2.6.22 and 2.7_alpha1 through 2.7.7 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

15-10-202620-10-2026
EPSS score
0.41%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • openvpnAll versions (No fix recorded) | < 2.7.7-1
Openvpn1 product
  • openvpn≥ 2.6.0, ≤ 2.6.22 | ≥ 2.7_alpha1, ≤ 2.7.7
Ubuntu1 product
  • openvpnAll versions (No fix recorded) | < 2.5.11-0ubuntu0.22.04.5 | < 2.6.19-0ubuntu0.24.04.4 | < 2.7.0-1ubuntu1.3

3 vendors · 3 products

References

5 links