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Medium severity5.5NVD Advisory· Published Nov 9, 2021· Updated Jun 17, 2026

CVE-2021-40364

CVE-2021-40364

Description

A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3 UC04), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier (All versions < V15 SP1 Update 7), SIMATIC WinCC V16 (All versions < V16 Update 5), SIMATIC WinCC V17 (All versions < V17 Update 2), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 5). The affected systems store sensitive information in log files. An attacker with access to the log files could publicly expose the information or reuse it to develop further attacks on the system.

Affected products

30
  • Siemens Foundation/Simatic Pcs76 versions
    cpe:2.3:a:siemens:simatic_pcs_7:*:*:*:*:*:*:*:*+ 5 more
    • cpe:2.3:a:siemens:simatic_pcs_7:*:*:*:*:*:*:*:*range: <=8.2
    • cpe:2.3:a:siemens:simatic_pcs_7:9.1:-:*:*:*:*:*:*
    • (no CPE)range: V8.2, V9.0 < V9.0 SP3 UC04, V9.1 < V9.1 SP1
    • (no CPE)range: All versions
    • (no CPE)range: All versions < V9.0 SP3 UC04
    • (no CPE)range: All versions < V9.1 SP1
  • Siemens Foundation/Wincc22 versions
    cpe:2.3:a:siemens:simatic_wincc:*:*:*:*:*:*:*:*+ 21 more
    • cpe:2.3:a:siemens:simatic_wincc:*:*:*:*:*:*:*:*range: <=7.4
    • cpe:2.3:a:siemens:simatic_wincc:15:*:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:16:-:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:16:update1:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:16:update2:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:16:update3:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:16:update4:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:17:-:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:17:update1:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:7.5:-:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:7.5:sp1:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:7.5:sp1_update1:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:7.5:sp1_update2:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:7.5:sp2:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:7.5:sp2_update1:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:7.5:sp2_update2:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:7.5:sp2_update3:*:*:*:*:*:*
    • cpe:2.3:a:siemens:simatic_wincc:7.5:sp2_update4:*:*:*:*:*:*
    • (no CPE)range: All versions < V16 Update 5
    • (no CPE)range: All versions < V17 Update 2
    • (no CPE)range: All versions < V7.4 SP1 Update 19
    • (no CPE)range: All versions < V7.5 SP2 Update 5
  • Siemens Foundation/Simatic Wincc Oallm-fuzzy
    Range: V15 and earlier < V15 SP1 Update 7, V16 < V16 Update 5, V17 < V17 Update 2, V7.4 < V7.4 SP1 Update 19, V7.5 < V7.5 SP2 Update 5
  • Siemens/SIMATIC WinCC V15 and earlierv5
    Range: All versions < V15 SP1 Update 7

Patches

Vulnerability mechanics

References

1

News mentions

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