How severe is CVE-2026-4753?

CVE-2026-4753 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2026-4753 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-4753?

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

Does CVE-2026-4753 have an EU (EUVD) identifier?

Yes. CVE-2026-4753 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14772.

When was CVE-2026-4753 published?

CVE-2026-4753 was published on 2026-03-24 and last updated on 2026-06-17.

CVE-2026-4753

CVE-2026-4753 is a critical-severity vulnerability with a CVSS 3.x base score of 9.1. 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-125.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14772
Weakness: CWE-125
Published: 2026-03-24
Last modified: 2026-06-17

Description

Out-of-bounds Read vulnerability in slajerek RetroDebugger.This issue affects RetroDebugger: before v0.64.72.

Frequently asked questions

What is CVE-2026-4753?: Out-of-bounds Read vulnerability in slajerek RetroDebugger.This issue affects RetroDebugger: before v0.64.72.
How severe is CVE-2026-4753?: CVE-2026-4753 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2026-4753 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-4753?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-4753 have an EU (EUVD) identifier?: Yes. CVE-2026-4753 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14772.
When was CVE-2026-4753 published?: CVE-2026-4753 was published on 2026-03-24 and last updated on 2026-06-17.

References

https://github.com/slajerek/RetroDebugger/pull/97

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