CVE-2021-40359 is a path traversal vulnerability impacting numerous Siemens SIMATIC products, including WinCC, PCS 7, and BATCH, across various versions. This flaw allows an authenticated attacker to read critical files outside of intended directories by manipulating pathnames during file downloads. Rated with a CVSS score of 7.7 (High), it presents a significant risk due to its low attack complexity and high confidentiality impact, requiring only low privileges for exploitation. While there are no known public exploits (Metasploit, Nuclei, ExploitDB) or evidence of active exploitation (not in KEV or Hot List), the vulnerability has garnered notable community discussion and media coverage, indicating awareness within the cybersecurity landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
8.2CPE matchmatch criteria | cpe:2.3:a:siemens:simatic_batch:8.2:-:*:*:*:*:*:* | ||
8.2CPE matchmatch criteria | cpe:2.3:a:siemens:simatic_batch:8.2:upd_9:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:a:siemens:simatic_batch:9.0:-:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:a:siemens:simatic_batch:9.0:sp1:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:a:siemens:simatic_batch:9.0:sp1_update_1:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.