How severe is CVE-2023-7326?

CVE-2023-7326 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2023-7326 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-7326?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-7326 have an EU (EUVD) identifier?

Yes. CVE-2023-7326 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60055.

When was CVE-2023-7326 published?

CVE-2023-7326 was published on 2025-11-12 and last updated on 2026-06-17.

CVE-2023-7326

CVE-2023-7326 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-60055
Weakness: CWE-400
Published: 2025-11-12
Last modified: 2026-06-17

Description

The Epson Stylus SX510W embedded web management service fails to properly handle consecutive ampersand characters in query parameters when accessing /PRESENTATION/HTML/TOP/INDEX.HTML. A remote attacker can send a malformed request that triggers improper input parsing or memory handling, resulting in the printer process shutting down or powering off, causing a denial of service condition.

Frequently asked questions

What is CVE-2023-7326?: The Epson Stylus SX510W embedded web management service fails to properly handle consecutive ampersand characters in query parameters when accessing /PRESENTATION/HTML/TOP/INDEX.HTML. A remote attacker can send a malformed request that triggers improper input parsing or memory handling, resulting in the printer process shutting down or powering off, causing a denial of service condition.
How severe is CVE-2023-7326?: CVE-2023-7326 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2023-7326 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-7326?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-7326 have an EU (EUVD) identifier?: Yes. CVE-2023-7326 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-60055.
When was CVE-2023-7326 published?: CVE-2023-7326 was published on 2025-11-12 and last updated on 2026-06-17.

References

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