CVE-2023-29158 | SUBNET PowerSYSTEM Center Authentication Bypass by Capture-replay

SUBNET PowerSYSTEM Center versions 2020 U10 and prior are vulnerable to replay attacks which may result in a denial-of-service condition or a loss of data integrity.

Published: 2023-06-19 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2023-29158 is rated Low Risk (39.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.58%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-29158

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-16 0.47% 0.58% +0.11%
2 2026-06-15 0.05% 0.47% +0.41%
3 2026-04-15 0.05%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-29158

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
0.9 5.2 [email protected]
9.1 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 5.2 [email protected]

Weakness enumeration for CVE-2023-29158

Affected software / configurations for CVE-2023-29158

Vendor Product Version Raw CPE
subnet powersystem_center < 2020 cpe:2.3:a:subnet:powersystem_center:*:*:*:*:*:*:*:*
subnet powersystem_center 2020 cpe:2.3:a:subnet:powersystem_center:2020:-:*:*:*:*:*:*
subnet powersystem_center 2020 cpe:2.3:a:subnet:powersystem_center:2020:u10:*:*:*:*:*:*

References for CVE-2023-29158

URL Tags
https://www.cisa.gov/news-events/ics-advisories/icsa-23-166-01 Third Party Advisory US Government Resource
cvelogic Threat Intelligence