CVE-2023-41910
criticalpriority · track · 39EPSS 0.011 · 67 %ileDEEUNLRUUSEPSS · scored 2026-10-22
An issue was discovered in lldpd before 1.0.17. By crafting a CDP PDU packet with specific CDP_TLV_ADDRESSES TLVs, a malicious actor can remotely force the lldpd daemon to perform an out-of-bounds read on heap memory. This occurs in cdp_decode in daemon/protocols/cdp.c.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedSIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0)siemens_psirt
Update to V2.4.8 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954889/ - FixedTIM 1531 IRC (6GK7543-1MX00-0XE0)siemens_psirt
Update to V2.4.8 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954889/ - FixedSIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0)siemens_psirt
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0)siemens_psirt
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0)siemens_psirt
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0)siemens_psirt
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0)siemens_psirt
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0)siemens_psirt
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0)cisa_csaf_ot
Update to V2.4.8 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954889/ - FixedTIM 1531 IRC (6GK7543-1MX00-0XE0)cisa_csaf_ot
Update to V2.4.8 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954889/ - FixedSIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0)cisa_csaf_ot
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0)cisa_csaf_ot
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0)cisa_csaf_ot
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0)cisa_csaf_ot
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0)cisa_csaf_ot
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/ - FixedSIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0)cisa_csaf_ot
Update to V2.3 or later version
https://support.industry.siemens.com/cs/ww/en/view/109954475/
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (23)
Products and version ranges known to be affected.
advisories (5)
Vendor and ecosystem advisories describing this.
- NCSC-2024-0246Kwetsbaarheden verholpen in Siemens productenNL2024-06-11csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in diverse producten, zoals SCALANCE, SICAM, Tecnomatix, SITOP en PowerSys.
- SSA-337522SSA-337522: Multiple Vulnerabilities in TIM 1531 IRC before V2.4.82024-06-11csaf · siemens_psirtDE
Siemens has released new versions for the affected products and recommends to update to the latest versions.
- SSA-625862SSA-625862: Multiple Vulnerabilities in Third-Party Components in SIMATIC CP 1542SP-1 and CP 1543SP-1 before V2.32024-06-11csaf · siemens_psirtDE
SIMATIC CP 1542SP-1 and CP 1543SP-1 before V2.3 are affected by multiple vulnerabilities in third-party components and the integrated web server. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- ICSA-24-165-06Siemens TIM 1531 IRC2024-06-11icsa · cisa_csaf_otUS
Siemens has released new versions for the affected products and recommends to update to the latest versions.
- ICSA-24-165-10Siemens SIMATIC and SIPLUS2024-06-11icsa · cisa_csaf_otUS
SIMATIC CP 1542SP-1 and CP 1543SP-1 before V2.3 are affected by multiple vulnerabilities in third-party components and the integrated web server. Siemens has released new versions for the affected products and recommends to update to the latest versions.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-41910/cnnvd
- https://github.com/lldpd/lldpd/commit/a9aeabdf879c25c584852a0bb5523837632f099bcnnvd
- https://github.com/lldpd/lldpd/releases/tag/1.0.17cnnvd
- https://lists.debian.org/debian-lts-announce/2023/09/msg00025.htmlcnnvd
- https://www.auscert.org.au/bulletins/ESB-2023.5489cnnvd
- https://www.debian.org/security/2023/dsa-5505cnnvd
- https://github.com/lldpd/lldpd/commit/a9aeabdf879c25c584852a0bb5523837632f099benisa_euvd
- https://github.com/lldpd/lldpd/releases/tag/1.0.17enisa_euvd
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