How severe is CVE-2023-3331?

CVE-2023-3331 has a CVSS 3.x base score of 5.4, 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 low.

Is CVE-2023-3331 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3331?

CVE-2023-3331 primarily affects Nec Aterm Wf300hp Firmware. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-3331?

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

When was CVE-2023-3331 published?

CVE-2023-3331 was published on 2023-06-28 and last updated on 2026-06-17.

CVE-2023-3331

CVE-2023-3331 is a medium-severity vulnerability in Nec Aterm Wf300hp Firmware with a CVSS 3.x base score of 5.4. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Nec Aterm Wf300hp Firmware
Published: 2023-06-28
Last modified: 2026-06-17

Description

Improper Limitation of a Pathname to a Restricted Directory vulnerability in NEC Corporation Aterm Aterm WG2600HP2, WG2600HP, WG2200HP, WG1800HP2, WG1800HP, WG1400HP, WG600HP, WG300HP, WF300HP, WR9500N, WR9300N, WR8750N, WR8700N, WR8600N, WR8370N, WR8175N and WR8170N all versions allows a attacker to delete specific files in the product.

Frequently asked questions

What is CVE-2023-3331?: Improper Limitation of a Pathname to a Restricted Directory vulnerability in NEC Corporation Aterm Aterm WG2600HP2, WG2600HP, WG2200HP, WG1800HP2, WG1800HP, WG1400HP, WG600HP, WG300HP, WF300HP, WR9500N, WR9300N, WR8750N, WR8700N, WR8600N, WR8370N, WR8175N and WR8170N all versions allows a attacker to delete specific files in the product.
How severe is CVE-2023-3331?: CVE-2023-3331 has a CVSS 3.x base score of 5.4, 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 low.
Is CVE-2023-3331 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3331?: CVE-2023-3331 primarily affects Nec Aterm Wf300hp Firmware. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-3331?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3331 published?: CVE-2023-3331 was published on 2023-06-28 and last updated on 2026-06-17.

References

https://https://jpn.nec.com/security-info/secinfo/nv23-007_en.html

Affected products (17)

cpe:2.3:o:nec:aterm_wf300hp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg1400hp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg1800hp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg1800hp2_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg2200hp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg2600hp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg2600hp2_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg300hp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wg600hp_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wr8600n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wr8700n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wr8750n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wr9300n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wr9500n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wr8170n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wr8175n_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:nec:aterm_wr8370n_firmware:-:*:*:*:*:*:*:*

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