CVE-2026-13117Patch(openvpn / openvpn)

LOWCVSS 8.1 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Patch openvpn openvpn systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

An incomplete guard in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to trigger a use-after-free during TLS session promotion, potentially leading to a denial of service or memory leakage

openvpn CVEs Back to dashboard

2.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://community.openvpn.net/Security%20Announcements/CVE-2026-13117

Other references

Weakness type (CWE)

CWE-416

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

openvpn

Threat summary

Public PoC is present in monitored signal
Patch or workaround signal is available
4 mentions across 4 observed days
Momentum state: stable

What's happening

PoC mentioned or linked in 1 signal
Patch or workaround mentioned in 2 signals
Technical details provided in 2 signals
General: 1 classified signal
Disclosure: 1 classified signal
Peaked 3d ago at 1 mentions (2026-06-27); latest day: 1
4 total mentions across 4 days

Affected systems

Vendors

openvpn

Products

openvpn

Deep dive

Activity timeline4 mentions / 4d

Signal classification3 categories

Patch

250.0%

General

125.0%

Disclosure

125.0%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-06-27	1	General1
2026-07-04	1	Patch1
2026-07-05	1	Disclosure1
2026-07-10	1	Patch1

Full discourse4 posts

trace37@trace37_labs83d
Patch
Latest CVE assigned to trace37. OpenVPN - A use-after-free in OpenVPN's tls-crypt-v2. The safety check meant to stop the server sending a client freed memory has a blind spot, so during a routine key renegotiation OpenVPN frees a buffer it's about to send — and hands whatever now sits in that memory to the client. Remediated by maintainer in version 2.7.5. https://labs.trace37.com/cves/cve-2026-13117/
Post summary
Trace37 reports a use‑after‑free flaw in OpenVPN's tls‑crypt‑v2, fixed in OpenVPN 2.7.5.
0401681.8K
1.0K followersView on X
‍ ‍‍‍ᓭ cryptostorm ᓯ@cryptostorm_is77d
Patch
v4.01 of our Windows client is at https://cryptostorm.is/windows#widget See attached for client-side fixes. Servers were updated to OpenVPN 2.7.5 on the 2nd, and v4.01 bundles 2.7.5, so we're good on CVE-2026-12996, CVE-2026-13117, CVE-2026-12932, and CVE-2026-13698. https://t.co/7VvcXvxk70
Post summary
A new Windows client version 4.01 bundled with OpenVPN 2.7.5 is released, claiming to fix CVE‑2026‑12996, ‑13117, ‑12932, and ‑13698 through the update and attached client‑side fixes.
000100830
6.0K followersView on X
trace37@trace37_labs91d
General
And, another CVE for @trace37_labs CVE-2026-13117 Under embargo currently.
Post summary
The text only announces that CVE-2026-13117 for trace37_labs is under embargo, providing no further details.
10040423
999 followersView on X
UNDERCODE TESTING@UndercodeUpdate82d
Disclosure
🚨 #CVE-2026-13117: OpenVPN's tls-crypt-v2 Heap Use-After-Free — How a Single Blind Spot in a Safety Check Opens the Door to RCE + Video https://undercodetesting.com/cve-2026-13117-openvpns-tls-crypt-v2-heap-use-after-free-how-a-single-blind-spot-in-a-safety-check-opens-the-door-to-rce-video/ Educational Purposes!
Post summary
The article announces a new OpenVPN tls‑crypt‑v2 heap use‑after‑free flaw (CVE‑2026‑13117) that can cause remote code execution, includes a video demonstration, but provides no evidence of active exploitation, patches, or false‑positive status.
0000059
650 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	openvpn	openvpn	-	-	-

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What researchers are saying

CVE-2026-13117

trace37[verified]@trace37_labsPatch

Trace37 reports a use‑after‑free flaw in OpenVPN's tls‑crypt‑v2, fixed in OpenVPN 2.7.5.

‍ ‍‍‍ᓭ cryptostorm ᓯ[verified]@cryptostorm_isPatch

A new Windows client version 4.01 bundled with OpenVPN 2.7.5 is released, claiming to fix CVE‑2026‑12996, ‑13117, ‑12932, and ‑13698 through the update and attached client‑side fixes.

trace37[verified]@trace37_labsGeneral

The text only announces that CVE-2026-13117 for trace37_labs is under embargo, providing no further details.

UNDERCODE TESTING[verified]@UndercodeUpdateDisclosure

The article announces a new OpenVPN tls‑crypt‑v2 heap use‑after‑free flaw (CVE‑2026‑13117) that can cause remote code execution, includes a video demonstration, but provides no evidence of active exploitation, patches, or false‑positive status.