CVE-2023-34260

Exp

Kyocera TASKalfa 4053ci printers through 2VG_S000.002.561 allow a denial of service (service outage) via /wlmdeu%2f%2e%2e%2f%2e%2e followed by a directory reference such as %2fetc%00index.htm to try to read the /etc directory.

Published: 2023-11-03 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2023-34260 is rated High Exploit Risk (76.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.41%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2023-34260

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2023-34260

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 2025-11-23 2.63% 3.41% +0.77%
2 2025-11-21 5.82% 2.63% -3.18%
3 2025-11-18 5.82%

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-34260

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
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]

Weakness enumeration for CVE-2023-34260

Affected software / configurations for CVE-2023-34260

Vendor Product Version Raw CPE
kyocera d-copia253mf_plus_firmware <= 2vg_s000.002.561 cpe:2.3:o:kyocera:d-copia253mf_plus_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-34260

URL Tags
https://sec-consult.com/vulnerability-lab/ Third Party Advisory
https://seclists.org/fulldisclosure/2023/Jul/15 Exploit Mailing List Third Party Advisory
cvelogic Threat Intelligence