How severe is CVE-2023-33281?

CVE-2023-33281 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-33281 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-33281?

CVE-2023-33281 affects Nissan Sylphy Classic 2021 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-33281?

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

When was CVE-2023-33281 published?

CVE-2023-33281 was published on 2023-05-22 and last updated on 2026-06-17.

CVE-2023-33281

CVE-2023-33281 is a medium-severity vulnerability in Nissan Sylphy Classic 2021 Firmware with a CVSS 3.x base score of 6.5. 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-294.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-294
Affected product: Nissan Sylphy Classic 2021 Firmware
Published: 2023-05-22
Last modified: 2026-06-17

Description

The remote keyfob system on Nissan Sylphy Classic 2021 sends the same RF signal for each door-open request, which allows for a replay attack. NOTE: the vendor's position is that this cannot be reproduced with genuine Nissan parts: for example, the combination of keyfob and door handle shown in the exploit demonstration does not match any technology that Nissan provides to customers.

Frequently asked questions

What is CVE-2023-33281?: The remote keyfob system on Nissan Sylphy Classic 2021 sends the same RF signal for each door-open request, which allows for a replay attack. NOTE: the vendor's position is that this cannot be reproduced with genuine Nissan parts: for example, the combination of keyfob and door handle shown in the exploit demonstration does not match any technology that Nissan provides to customers.
How severe is CVE-2023-33281?: CVE-2023-33281 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-33281 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-33281?: CVE-2023-33281 affects Nissan Sylphy Classic 2021 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-33281?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-33281 published?: CVE-2023-33281 was published on 2023-05-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:nissan:sylphy_classic_2021_firmware:-:*:*:*:*:*:*:*

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