How severe is CVE-2023-30307?

CVE-2023-30307 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-30307 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-30307?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-30307 have an EU (EUVD) identifier?

Yes. CVE-2023-30307 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-34730.

When was CVE-2023-30307 published?

CVE-2023-30307 was published on 2024-05-28 and last updated on 2026-06-17.

CVE-2023-30307

CVE-2023-30307 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-384.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-34730
Weakness: CWE-384
Published: 2024-05-28
Last modified: 2026-06-17

Description

An issue discovered in TP-LINK TL-R473GP-AC, TP-LINK XDR6020, TP-LINK TL-R479GP-AC, TP-LINK TL-R4239G, TP-LINK TL-WAR1200L, and TP-LINK TL-R476G routers allows attackers to hijack TCP sessions which could lead to a denial of service.

Frequently asked questions

What is CVE-2023-30307?: An issue discovered in TP-LINK TL-R473GP-AC, TP-LINK XDR6020, TP-LINK TL-R479GP-AC, TP-LINK TL-R4239G, TP-LINK TL-WAR1200L, and TP-LINK TL-R476G routers allows attackers to hijack TCP sessions which could lead to a denial of service.
How severe is CVE-2023-30307?: CVE-2023-30307 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-30307 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-30307?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-30307 have an EU (EUVD) identifier?: Yes. CVE-2023-30307 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-34730.
When was CVE-2023-30307 published?: CVE-2023-30307 was published on 2024-05-28 and last updated on 2026-06-17.

References

https://www.ndss-symposium.org/ndss-paper/exploiting-sequence-number-leakage-tcp-hijacking-in-nat-enabled-wi-fi-networks/

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