CVE-2022-33137
No exploitation reported by the sources we read.
- Published2022-07-12
- Fixed in3.3
- WeaknessCWE-613
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3), SIMATIC MV540 S (All versions < V3.3), SIMATIC MV550 H (All versions < V3.3), SIMATIC MV550 S (All versions < V3.3), SIMATIC MV560 U (All versions < V3.3), SIMATIC MV560 X (All versions < V3.3). The web session management of affected devices does not invalidate session ids in certain logout scenarios. This could allow an authenticated remote attacker to hijack other users' sessions.
Timeline
dates in UTC- 2022-07-1210:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-33137?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-33137?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.3 | < 3.3 | 3.3 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.3 | < 3.3 | 3.3 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.3 | < 3.3 | 3.3 | NVD |
3 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Siemens SIMATIC MV500 Devices
SIMATIC MV540 H · SIMATIC MV540 S · SIMATIC MV550 H · +3 more
Fix
- Update Siemens simatic mv540 h firmware to 3.3
- Vendor fix CISA ICSA-22-195-03 · 6 productsUpdate to V3.3 or later version
Advisories and patches
- cert-portal.siemens.comPatch · Vendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.18read 2026-10-23
- NVDCVSS 2.06read 2026-10-23
- CNAweakness (CWE)CWE-613read 2026-10-23
- NVDweakness (CWE)CWE-613read 2026-10-23
- FIRST EPSSEPSS score0.9 %2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Published
- 2022-07-12
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2022-33137?
Is CVE-2022-33137 actively exploited?
What is the CVSS score for CVE-2022-33137?
Running SIMATIC MV540 H (All versions <? Hear about its next vulnerability
Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».
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Go further
- Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.