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CVE-2023-34795

23
FAUCET Score

CVE-2023-34795 is a denial-of-service vulnerability affecting xlsxio versions 0.1.2 through 0.2.34, stemming from a free of uninitialized pointer in the xlsxioread_sheetlist_close() function when processing a crafted XLSX file. With a CVSS score of 7.8 (HIGH), this vulnerability has a local attack vector, low attack complexity, and can lead to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.1.2, <= 0.2.34CPE matchmatch criteria
cpe:2.3:a:xlsxio_project:xlsxio:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 26th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / brechtsanders/xlsxio/commit/d653f1604b54532f11b45dca1fa164b4a1f15e2d
Patch
github.com / brechtsanders/xlsxio/issues/121
ExploitIssue TrackingThird Party Advisory
github.com / xf1les/cve-advisories/blob/main/2023/CVE-2023-34795.md
ExploitThird Party Advisory