How severe is CVE-2021-1725?

CVE-2021-1725 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-1725 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-1725?

CVE-2021-1725 primarily affects Microsoft Bot Framework Software Development Kit. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-1725?

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

When was CVE-2021-1725 published?

CVE-2021-1725 was published on 2021-01-12 and last updated on 2026-06-17.

CVE-2021-1725

CVE-2021-1725 is a medium-severity vulnerability in Microsoft Bot Framework Software Development Kit with a CVSS 3.x base score of 5.5. 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-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Microsoft Bot Framework Software Development Kit
Published: 2021-01-12
Last modified: 2026-06-17

Description

Bot Framework SDK Information Disclosure Vulnerability

Frequently asked questions

What is CVE-2021-1725?: Bot Framework SDK Information Disclosure Vulnerability
How severe is CVE-2021-1725?: CVE-2021-1725 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-1725 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-1725?: CVE-2021-1725 primarily affects Microsoft Bot Framework Software Development Kit. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-1725?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-1725 published?: CVE-2021-1725 was published on 2021-01-12 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:microsoft:bot_framework_software_development_kit:-:*:*:*:*:.net_framework:*:*
cpe:2.3:a:microsoft:bot_framework_software_development_kit:-:*:*:*:*:javascript:*:*
cpe:2.3:a:microsoft:bot_framework_software_development_kit:-:*:*:*:*:python:*:*

More vulnerabilities in Microsoft Bot Framework Software Development Kit

CVE-2021-43225 — High (CVSS 7.5): Bot Framework SDK Remote Code Execution Vulnerability

All CVEs affecting Microsoft Bot Framework Software Development Kit →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →