No exploitation reportedFix available

CVE-2019-10953

Q: Is CVE-2019-10953 actively exploited?

Active exploitation of CVE-2019-10953 has not been confirmed. Its EPSS score was 3.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-10953?

CVE-2019-10953 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2019-04-17
WeaknessCWE-400 · CWE-770

Am I 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

ABB, Phoenix Contact, Schneider Electric, Siemens, WAGO - Programmable Logic Controllers, multiple versions. Researchers have found some controllers are susceptible to a denial-of-service attack due to a flood of network packets.

Timeline

dates in UTC

2019-04-1715:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-10953?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-10953?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Abb pm554-tp-eth firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Phoenixcontact ilc 151 eth firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Schneider-electric modicon m221 firmwareversion to verify

Branch	Affected	Fixed in	Source
1.10	< 1.10.0.0	1.10.0.0	NVD

7 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

ICSA-19-106-03 CISA11 known affected
PLC Cycle Time Influences (Update A)
WAGO 750-889 Controller: KNX IP · Phoenix Contact: ILC 191 ETH 2TX · Siemens: 6ES7211-1AE40-0XB0 Simatic S7-1211 · +8 more

Full record on NVD

Fix

Vendor fix CISA ICSA-19-106-03 · 11 productsPLC vendors have responded to queries about this report with the following mitigations:
Vendor fix CISA ICSA-19-106-03 · 11 productsABB concludes the reported behavior is not a vulnerability but is due to a misconfiguration of the PLC watchdog, which was left in the default factory settings. This has led to a configuration that does not match the expectations expressed in the test cases and the result is the PLC not reacting as…
Vendor fix CISA ICSA-19-106-03 · 11 productsPhoenix Contact acknowledges this as a known, won 't fix issue for old products. Currently available products provide countermeasures to mitigate the impact on the safety-related functionality. Phoenix Contact urges users to adhere to theApplication note 107913_en_01.
Vendor fix CISA ICSA-19-106-03 · 11 productsMore information can be found in the VDE CERT advisory.
Vendor fix CISA ICSA-19-106-03 · 11 productsFixes are available in the Modicon M221 firmware v1.10.0.0 and the EcoStruxure Machine Expert - Basic v1.0 software (formerly SoMachine Basic) using either of the following options:Use this link to download the Machine Expert Basic software.
Vendor fix CISA ICSA-19-106-03 · 11 productsOr run the Schneider Electric Software Update tool in order to download and install EcoStruxure Machine Expert - Basic v1.0 software.

Advisories and patches

ics-cert.us-cert.govMitigation

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-05-29
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.17.52026-05-29
NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.05read 2026-10-23
CNAweakness (CWE)CWE-400read 2026-10-23
NVDweakness (CWE)CWE-770read 2026-10-23
FIRST EPSSEPSS score3.4 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2019-04-17
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-10953?

Is CVE-2019-10953 actively exploited?

Active exploitation of CVE-2019-10953 has not been confirmed. Its EPSS score was 3.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-10953?

CVE-2019-10953 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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