🛡️ CVE-2022-29776 — core

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2022-29776 is classified as CWE-787: Out-of-bounds Write. Data is written past the end or before the start of a buffer, corrupting whatever is stored there.

Affected software

CVE-2022-29776 is recorded against 2 packages.

• core (fixed in 6.1.0.26)
• document-server (fixed in 6.0.0)

Timeline and source

Published on 2 June 2022 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

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Other advisories for this package

core has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-40255 (6.1 Medium, published 16 Apr 2026)
• CVE-2023-5192 (6.5 Medium, published 27 Sep 2023)
• CVE-2023-25575 (7.7 High, published 28 Feb 2023)
• CVE-2022-29777 (9.8 Critical, published 2 Jun 2022)

Same weakness in other software

These advisories are the same class of weakness (CWE-787: Out-of-bounds Write) in other software:

• CVE-2022-29208 (8.0 High, published 9 Jul 2026)
• CVE-2022-23561 (8.0 High, published 9 Jul 2026)
• CVE-2019-9423 (8.0 High, published 9 Jul 2026)
• CVE-2018-5268 (published 9 Jul 2026)
• CVE-2017-12606 (8.0 High, published 9 Jul 2026)
• CVE-2019-5063 (8.0 High, published 9 Jul 2026)
• CVE-2017-12605 (8.0 High, published 9 Jul 2026)
• CVE-2017-12603 (8.0 High, published 2 Jul 2026)

Details

Affected Packages

References