CVE-2022-26649

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204-2 (All versions < V5.2.6), SCALANCE X204-2FM (All versions < V5.2.6), SCALANCE X204-2LD (All versions < V5.2.6), SCALANCE X204-2LD TS (All versions < V5.2.6), SCALANCE X204-2TS (All versions < V5.2.6), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE X206-1 (All versions < V5.2.6), SCALANCE X206-1LD (All versions < V5.2.6), SCALANCE X208 (All versions < V5.2.6), SCALANCE X208PRO (All versions < V5.2.6), SCALANCE X212-2 (All versions < V5.2.6), SCALANCE X212-2LD (All versions < V5.2.6), SCALANCE X216 (All versions < V5.2.6), SCALANCE X224 (All versions < V5.2.6), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204 (All versions < V5.2.6), SCALANCE XF204-2 (All versions < V5.2.6), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SCALANCE XF206-1 (All versions < V5.2.6), SCALANCE XF208 (All versions < V5.2.6). Affected devices do not properly validate the URI of incoming HTTP GET requests. This could allow an unauthenticated remote attacker to crash affected devices.

Published: 2022-07-12 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-26649 is rated Moderate Risk (59.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.16%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-26649

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.76% 1.16% -0.60%
2 2026-05-30 1.15% 1.76% +0.61%
3 2025-11-21 — 1.15% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-26649

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.6 3.1 CRITICAL
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 6.0 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2022-26649

Affected software / configurations for CVE-2022-26649

Vendor Product Version Raw CPE
siemens scalance_x204-2_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x204-2_firmware:*:*:*:*:*:*:*:*
siemens scalance_x204-2fm_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x204-2fm_firmware:*:*:*:*:*:*:*:*
siemens scalance_x204-2ld_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x204-2ld_firmware:*:*:*:*:*:*:*:*
siemens scalance_x204-2ld_ts_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x204-2ld_ts_firmware:*:*:*:*:*:*:*:*
siemens scalance_x204-2ts_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x204-2ts_firmware:*:*:*:*:*:*:*:*
siemens scalance_x206-1_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x206-1_firmware:*:*:*:*:*:*:*:*
siemens scalance_x206-1ld_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x206-1ld_firmware:*:*:*:*:*:*:*:*
siemens scalance_x208_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x208_firmware:*:*:*:*:*:*:*:*
siemens scalance_x208_pro_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x208_pro_firmware:*:*:*:*:*:*:*:*
siemens scalance_x212-2_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x212-2_firmware:*:*:*:*:*:*:*:*
siemens scalance_x212-2ld_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x212-2ld_firmware:*:*:*:*:*:*:*:*
siemens scalance_x216_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x216_firmware:*:*:*:*:*:*:*:*
siemens scalance_x224_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_x224_firmware:*:*:*:*:*:*:*:*
siemens scalance_xf204_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_xf204_firmware:*:*:*:*:*:*:*:*
siemens scalance_xf204-2_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_xf204-2_firmware:*:*:*:*:*:*:*:*
siemens scalance_xf206-1_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_xf206-1_firmware:*:*:*:*:*:*:*:*
siemens scalance_xf208_firmware < 5.2.6 cpe:2.3:o:siemens:scalance_xf208_firmware:*:*:*:*:*:*:*:*
siemens scalance_x200-4p_irt_firmware — cpe:2.3:o:siemens:scalance_x200-4p_irt_firmware:*:*:*:*:*:*:*:*
siemens scalance_x201-3p_irt_firmware — cpe:2.3:o:siemens:scalance_x201-3p_irt_firmware:*:*:*:*:*:*:*:*
siemens scalance_x201-3p_irt_pro_firmware — cpe:2.3:o:siemens:scalance_x201-3p_irt_pro_firmware:*:*:*:*:*:*:*:*
siemens scalance_x202-2irt_firmware — cpe:2.3:o:siemens:scalance_x202-2irt_firmware:*:*:*:*:*:*:*:*
siemens scalance_x202-2p_irt_firmware — cpe:2.3:o:siemens:scalance_x202-2p_irt_firmware:*:*:*:*:*:*:*:*
siemens scalance_x202-2p_irt_pro_firmware — cpe:2.3:o:siemens:scalance_x202-2p_irt_pro_firmware:*:*:*:*:*:*:*:*
siemens scalance_x204irt_firmware — cpe:2.3:o:siemens:scalance_x204irt_firmware:*:*:*:*:*:*:*:*
siemens scalance_x204irt_pro_firmware — cpe:2.3:o:siemens:scalance_x204irt_pro_firmware:*:*:*:*:*:*:*:*
siemens scalance_xf201-3p_irt_firmware — cpe:2.3:o:siemens:scalance_xf201-3p_irt_firmware:*:*:*:*:*:*:*:*
siemens scalance_xf202-2p_irt_firmware — cpe:2.3:o:siemens:scalance_xf202-2p_irt_firmware:*:*:*:*:*:*:*:*
siemens scalance_xf204-2ba_irt_firmware — cpe:2.3:o:siemens:scalance_xf204-2ba_irt_firmware:*:*:*:*:*:*:*:*
siemens scalance_xf204irt_firmware — cpe:2.3:o:siemens:scalance_xf204irt_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-26649

cvelogic Threat Intelligence