How severe is CVE-2023-35848?

CVE-2023-35848 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 none, integrity none, and availability high.

Is CVE-2023-35848 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-35848?

CVE-2023-35848 affects Virtualsquare Picotcp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-35848?

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-2023-35848 published?

CVE-2023-35848 was published on 2023-06-19 and last updated on 2026-06-17.

CVE-2023-35848

CVE-2023-35848 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-682.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-682
Affected product: Virtualsquare Picotcp
Published: 2023-06-19
Last modified: 2026-06-17

Description

VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 lacks certain size calculations before attempting to set a value of an mss structure member.

Frequently asked questions

What is CVE-2023-35848?: VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 lacks certain size calculations before attempting to set a value of an mss structure member.
How severe is CVE-2023-35848?: CVE-2023-35848 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 none, integrity none, and availability high.
Is CVE-2023-35848 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-35848?: CVE-2023-35848 affects Virtualsquare Picotcp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-35848?: 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-2023-35848 published?: CVE-2023-35848 was published on 2023-06-19 and last updated on 2026-06-17.

References

https://github.com/virtualsquare/picotcp/pull/15/files

Affected products (1)

cpe:2.3:a:virtualsquare:picotcp:*:*:*:*:*:*:*:*

More vulnerabilities in Virtualsquare Picotcp

CVE-2023-35849 — High (CVSS 7.5): VirtualSquare picoTCP (aka PicoTCP-NG) through 2.1 does not properly check whether header sizes would result in…
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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