Vulnerability in Siemens Scalance X200-4p Irt
CVE-2022-26647
A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204-2 (All versions < V5.2.6), SCALANCE X204-2FM (All versions < V5.2.6), SCALANCE X204-2LD (All versions < V5.2.6), SCALANCE X204-2LD TS (All versions < V5.2.6), SCALANCE X204-2TS (All versions < V5.2.6), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE X206-1 (All versions < V5.2.6), SCALANCE X206-1LD (All versions < V5.2.6), SCALANCE X208 (All versions < V5.2.6), SCALANCE X208PRO (All versions < V5.2.6), SCALANCE X212-2 (All versions < V5.2.6), SCALANCE X212-2LD (All versions < V5.2.6), SCALANCE X216 (All versions < V5.2.6), SCALANCE X224 (All versions < V5.2.6), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204 (All versions < V5.2.6), SCALANCE XF204-2 (All versions < V5.2.6), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SCALANCE XF206-1 (All versions < V5.2.6), SCALANCE XF208 (All versions < V5.2.6). The webserver of affected devices calculates session ids and nonces in an insecure manner. This could allow an unauthenticated remote attacker to brute-force session ids and hijack existing sessions.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.012 · change: +0.000
Affected products
- Siemens Scalance X200-4p Irt — versions All versions < V5.5.2
- Siemens Scalance X200-4p Irt
- Siemens Scalance X200-4p Irt Firmware
- Siemens Scalance X201-3p Irt — versions All versions < V5.5.2
- Siemens Scalance X201-3p Irt
- Siemens Scalance X201-3p Irt Firmware
- Siemens Scalance X201-3p Irt Pro — versions All versions < V5.5.2
- Siemens Scalance X201-3p Irt Pro
- Siemens Scalance X201-3p Irt Pro Firmware
- Siemens Scalance X202-2irt — versions All versions < V5.5.2
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-310038.pdf (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-26647?
- CVE-2022-26647 is a high-severity vulnerability in Siemens Scalance X200-4p Irt, classified under Use of Insufficiently Random Values. CVSS score: 8.8/10. Published 2022-07-12.
- How severe is CVE-2022-26647?
- High severity. CVSS v3 base score is 8.8 out of 10.