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CVE-2023-34795

HIGH
7.8
CVSS Score
Published: June 16, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 06:04 AM UTC
1 product affected across 1 vendorXlsxio

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

xlsxio v0.1.2 to v0.2.34 was discovered to contain a free of uninitialized pointer in the xlsxioread_sheetlist_close() function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted XLSX file.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Xlsxio· Xlsxio Project
95%
0.1.2 ≤ v ≤ 0.2.34

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Patch
Source: [email protected]
https://github.com/brechtsanders/xlsxio/commit/d653f1604b54532f11b45dca1fa164b4a1f15e2d
ExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://github.com/brechtsanders/xlsxio/issues/121
ExploitThird Party Advisory
Source: [email protected]
https://github.com/xf1les/cve-advisories/blob/main/2023/CVE-2023-34795.md

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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