Buffer overflow in Siemens Scalance X200-4pirt
CVE-2020-25226
A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.5.0). The web server of the affected devices contains a vulnerability that may lead to a buffer overflow condition. An attacker could cause this condition on the webserver by sending a specially crafted request. The webserver could stop and not recover anymore.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.017 · change: -0.002
Affected products
- Siemens Scalance X200-4pirt
- Siemens Scalance X200-4pirt Firmware
- Siemens Scalance X-200irt Switch Family (Incl. Siplus Net Variants) — versions All versions < V5.5.0
- Siemens Scalance X-200 Switch Family (Incl. Siplus Net Variants) — versions All versions < V5.2.5
- Siemens Scalance X201-3pirt
- Siemens Scalance X201-3pirt Firmware
- Siemens Scalance X202-2irt
- Siemens Scalance X202-2irt Firmware
- Siemens Scalance X202-2pirt
- Siemens Scalance X202-2pirt Firmware
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-139628.pdf (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-25226?
- CVE-2020-25226 is a critical-severity vulnerability in Siemens Scalance X200-4pirt, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2021-01-12.
- How severe is CVE-2020-25226?
- Critical severity. CVSS v3 base score is 9.8 out of 10.