CVE-2023-35849
CVE-2023-35849 is a high-severity vulnerability in Virtualsquare Picotcp with a CVSS 3.x base score of 7.5. 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-754.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-754
- Affected product: Virtualsquare Picotcp
- Published:
- Last modified:
Description
VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 does not properly check whether header sizes would result in accessing data outside of a packet.
Frequently asked questions
- What is CVE-2023-35849?
- VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 does not properly check whether header sizes would result in accessing data outside of a packet.
- How severe is CVE-2023-35849?
- CVE-2023-35849 has a CVSS 3.x base score of 7.5, rated high 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 none.
- Is CVE-2023-35849 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-35849?
- CVE-2023-35849 affects Virtualsquare Picotcp. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-35849?
- 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.
- When was CVE-2023-35849 published?
- CVE-2023-35849 was published on 2023-06-19 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:virtualsquare:picotcp:*:*:*:*:*:*:*:*
More vulnerabilities in Virtualsquare Picotcp
- CVE-2023-35848 — High (CVSS 7.5): VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 lacks certain size calculations before attempting to set a value of…
- CVE-2023-35847 — High (CVSS 7.5): VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 does not have an MSS lower bound (e.g., it could be zero).
- CVE-2023-35846 — High (CVSS 7.5): VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 does not check the transport layer length in a frame before…
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