CVE-2023-45898
HIGH
7.8
CVSS Score
Published: October 16, 2023 at 12:00 AM UTC
Updated: October 15, 2026 at 01:17 AM UTC
5 products affected across 2 vendorsLinux KernelSIMATIC S7-1500 CPU 1518-4 Pn /dp MFP FirmwareSiplus S7-1500 CPU 1518-4 Pn /dp MFP Firmware
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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit
Description
The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extents_status.c, related to ext4_es_insert_extent.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
6.5 ≤ v < 6.5.4
Affected range stops below 6.5.4, so it looks safe — our inference, not a vendor statement
V3.1.0 ≤ v < V3.1.53.1.0
Affected range stops below V3.1.5, so it looks safe — our inference, not a vendor statement
V3.1.0 ≤ v < V3.1.53.1.0
Affected range stops below V3.1.5, so it looks safe — our inference, not a vendor statement
All versions
V3.1.0 ≤ v < V3.1.53.1.0
Affected range stops below V3.1.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (7)
Third Party Advisory
Source: [email protected]
https://lore.kernel.org/lkml/aa03f191-445c-0d2e-d6d7-0a3208d7df7a%40huawei.com/T/Mailing ListPatchThird Party Advisory
Source: [email protected]
https://www.spinics.net/lists/stable-commits/msg317086.htmlSource: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlSource: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.htmlSSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.8HIGHCISA-ADP
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-416
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