Is CVE-2022-34819 actively exploited?

No active exploitation of CVE-2022-34819 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-34819 be exploited remotely?

Yes. CVE-2022-34819 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-34819?

CVE-2022-34819 has a CVSS score of 10.0 (CRITICAL).

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CRITICAL

CVE-2022-34819

CWE-122Published: July 12, 2022· Updated: Jun 17, 2026

10.0

CVSS v3.1

Official Description

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions < V3.3.46), SIMATIC CP 1243-7 LTE US (All versions < V3.3.46), SIMATIC CP 1243-8 IRC (All versions < V3.3.46), SIMATIC CP 1542SP-1 IRC (All versions >= V2.0 < V2.2.28), SIMATIC CP 1543-1 (All versions < V3.0.22), SIMATIC CP 1543SP-1 (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS NET CP 1242-7 V2 (All versions < V3.3.46), SIPLUS NET CP 1543-1 (All versions < V3.0.22), SIPLUS S7-1200 CP 1243-1 (All versions < V3.3.46), SIPLUS S7-1200 CP 1243-1 RAIL (All versions < V3.3.46). The application lacks proper validation of user-supplied data when parsing specific messages. This could result in a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of device.

NVD Source

Technical Analysis

CVE-2022-34819 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 10.0.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected Vendors & Products

siemens30 product(s)

simatic cp 1242-7 v2 firmwaresimatic cp 1242-7 v2simatic cp 1243-1 firmwaresimatic cp 1243-1simatic cp 1243-7 lte eu firmwaresimatic cp 1243-7 lte eusimatic cp 1243-7 lte us firmwaresimatic cp 1243-7 lte ussimatic cp 1243-8 irc firmwaresimatic cp 1243-8 ircsimatic cp 1542sp-1 irc firmwaresimatic cp 1542sp-1 irc+18

Source: NVD CPE · 30 total CPE entries