How severe is CVE-2021-3003?

CVE-2021-3003 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-3003 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3003?

CVE-2021-3003 affects Agenziaentrate Desktop Telematico. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3003?

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

When was CVE-2021-3003 published?

CVE-2021-3003 was published on 2021-05-10 and last updated on 2026-06-17.

CVE-2021-3003

CVE-2021-3003 is a medium-severity vulnerability in Agenziaentrate Desktop Telematico with a CVSS 3.x base score of 5.3. 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-319.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Agenziaentrate Desktop Telematico
Published: 2021-05-10
Last modified: 2026-06-17

Description

Agenzia delle Entrate Desktop Telematico 1.0.0 contacts the jws.agenziaentrate.it server over cleartext HTTP, which allows man-in-the-middle attackers to spoof product updates.

Frequently asked questions

What is CVE-2021-3003?: Agenzia delle Entrate Desktop Telematico 1.0.0 contacts the jws.agenziaentrate.it server over cleartext HTTP, which allows man-in-the-middle attackers to spoof product updates.
How severe is CVE-2021-3003?: CVE-2021-3003 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-3003 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3003?: CVE-2021-3003 affects Agenziaentrate Desktop Telematico. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3003?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-3003 published?: CVE-2021-3003 was published on 2021-05-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:agenziaentrate:desktop_telematico:1.0.0:*:*:*:*:*:*:*

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