CWE-1284 Improper Validation of Specified Quantity in Input vulnerability exists that could cause Event and Data Log truncation impacting l…

published 2026-04-14 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-22290

cvss: 4.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits: 0; none known

CWE-1284 Improper Validation of Specified Quantity in Input vulnerability exists that could cause Event and Data Log truncation impacting log integrity when a Web Admin user alters the POST /logsettings request payload.

Patch / fix

fixed in 1

schneider-electric powerchute_serial_shutdown 1.5

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-190-02 updated 2026-07-09 cvss 4.3

Schneider Electric PowerChute Serial Shutdown

Schneider Electric PowerChute™ Serial Shutdown <= 1.4
affected: vendor fix se.com
Red Hat Enterprise Linux PowerChute™ Serial Shutdown 1.5 SuSE Linux PowerChute™ Serial Shutdown 1.5 Microsoft Windows PowerChute™ Serial Shutdown 1.5
fixed

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 6 mo ago (2026-04-14)

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected products

Schneider Electric PowerChute™ Serial Shutdown

Classification

Weakness

CWE-1284 Improper Validation of Specified Quantity in Input

References

download.schneider-electric.com /files?p_Doc_Ref=SEVD-2026-104-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-104-01.pdf
vendor-advisory

Sources

CVE List CVE-2026-2403
NVD CVE-2026-2403

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary