CVE-2023-30306
CVE-2023-30306 is a medium-severity vulnerability with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- EPSS exploit prediction: 0% (19th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2023-34729
- Published:
- Last modified:
Description
An issue discovered in Mercury x30g, Mercury YR1800XG routers allows attackers to hijack TCP sessions which could lead to a denial of service.
Frequently asked questions
- What is CVE-2023-30306?
- An issue discovered in Mercury x30g, Mercury YR1800XG routers allows attackers to hijack TCP sessions which could lead to a denial of service.
- How severe is CVE-2023-30306?
- CVE-2023-30306 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2023-30306 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2023-30306?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2023-30306 have an EU (EUVD) identifier?
- Yes. CVE-2023-30306 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-34729.
- When was CVE-2023-30306 published?
- CVE-2023-30306 was published on 2024-05-28 and last updated on 2026-06-17.