Buffer overflow in Siemens Scalance X200-4p Irt
CVE-2022-26648
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). Affected devices do not properly validate the GET parameter XNo of incoming HTTP requests. This could allow an unauthenticated remote attacker to crash affected devices.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H.
EPSS exploit prediction
EPSS: 0.010 (61.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · 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-2022-26648?
- CVE-2022-26648 is a high-severity vulnerability in Siemens Scalance X200-4p Irt, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.2/10. Published 2022-07-12.
- How severe is CVE-2022-26648?
- High severity. CVSS v3 base score is 8.2 out of 10.