🛡️ CVE-2022-29878 — 7kg8500-0aa00-0aa0-firmware

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. A user must be tricked into taking some action. 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:H/PR:N/UI:R/S:U/C:H/I:H/A:H

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: Required — someone has to click, open or visit something.
• 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-2022-29878 is classified as CWE-294: Authentication Bypass by Capture-replay. A captured authentication exchange can be replayed later because it is not bound to a single use.

Affected software

CVE-2022-29878 is recorded against 36 packages.

• 7kg8500-0aa00-0aa0-firmware (fixed in 3.00)
• 7kg8500-0aa00-2aa0-firmware (fixed in 3.00)
• 7kg8500-0aa10-0aa0-firmware (fixed in 3.00)
• 7kg8500-0aa10-2aa0-firmware (fixed in 3.00)
• 7kg8500-0aa30-0aa0-firmware (fixed in 3.00)
• 7kg8500-0aa30-2aa0-firmware (fixed in 3.00)
• 7kg8501-0aa01-0aa0-firmware (fixed in 3.00)
• 7kg8501-0aa01-2aa0-firmware (fixed in 3.00)
• 7kg8501-0aa02-0aa0-firmware (fixed in 3.00)
• 7kg8501-0aa02-2aa0-firmware (fixed in 3.00)
• 7kg8501-0aa11-0aa0-firmware (fixed in 3.00)
• 7kg8501-0aa11-2aa0-firmware (fixed in 3.00)
• 7kg8501-0aa12-0aa0-firmware (fixed in 3.00)
• 7kg8501-0aa12-2aa0-firmware (fixed in 3.00)
• 7kg8501-0aa31-0aa0-firmware (fixed in 3.00)
• 7kg8501-0aa31-2aa0-firmware (fixed in 3.00)
• 7kg8501-0aa32-0aa0-firmware (fixed in 3.00)
• 7kg8501-0aa32-2aa0-firmware (fixed in 3.00)
• 7kg8550-0aa00-0aa0-firmware (fixed in 3.00)
• 7kg8550-0aa00-2aa0-firmware (fixed in 3.00)
• 7kg8550-0aa10-0aa0-firmware (fixed in 3.00)
• 7kg8550-0aa10-2aa0-firmware (fixed in 3.00)
• 7kg8550-0aa30-0aa0-firmware (fixed in 3.00)
• 7kg8550-0aa30-2aa0-firmware (fixed in 3.00)

Timeline and source

Published on 20 May 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

cert-portal.siemens.com
cert-portal.siemens.com
cert-portal.siemens.com
cert-portal.siemens.com

Other advisories for this package

7kg8500-0aa00-0aa0-firmware has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2022-41665 (9.8 Critical, published 11 Oct 2022)
• CVE-2022-40226 (7.5 High, published 11 Oct 2022)
• CVE-2022-29880 (6.5 Medium, published 20 May 2022)
• CVE-2022-29879 (4.3 Medium, published 20 May 2022)
• CVE-2022-29877 (6.5 Medium, published 20 May 2022)
• CVE-2022-29876 (7.1 High, published 20 May 2022)
• CVE-2022-29883 (5.3 Medium, published 20 May 2022)
• CVE-2022-29874 (8.8 High, published 20 May 2022)

Same weakness in other software

These advisories are the same class of weakness (CWE-294: Authentication Bypass by Capture-replay) in other software:

• CVE-2026-18967 (6.4 Medium, published 6 Aug 2026)
• CVE-2026-68079 (9.8 Critical, published 6 Aug 2026)
• CVE-2026-53431 (published 30 Jul 2026)
• CVE-2026-15614 (7.5 High, published 23 Jul 2026)
• CVE-2026-20779 (8.0 High, published 22 Jul 2026)
• CVE-2026-47133 (published 20 Jul 2026)
• CVE-2026-35149 (8.2 High, published 16 Jul 2026)
• CVE-2026-56453 (5.5 Medium, published 16 Jul 2026)

Details

Affected Packages

References