How severe is CVE-2020-25848?

CVE-2020-25848 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-25848 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-25848?

CVE-2020-25848 primarily affects Hgiga Msr45 Isherlock-antispam. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-25848?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-25848 published?

CVE-2020-25848 was published on 2020-12-31 and last updated on 2026-06-17.

CVE-2020-25848

CVE-2020-25848 is a critical-severity vulnerability in Hgiga Msr45 Isherlock-antispam with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Hgiga Msr45 Isherlock-antispam
Published: 2020-12-31
Last modified: 2026-06-17

Description

HGiga MailSherlock contains weak authentication flaw that attackers grant privilege remotely with default password generation mechanism.

Frequently asked questions

What is CVE-2020-25848?: HGiga MailSherlock contains weak authentication flaw that attackers grant privilege remotely with default password generation mechanism.
How severe is CVE-2020-25848?: CVE-2020-25848 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-25848 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-25848?: CVE-2020-25848 primarily affects Hgiga Msr45 Isherlock-antispam. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-25848?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-25848 published?: CVE-2020-25848 was published on 2020-12-31 and last updated on 2026-06-17.

References

https://www.twcert.org.tw/tw/cp-132-4256-cfc5a-1.html

Affected products (10)

cpe:2.3:a:hgiga:msr45_isherlock-antispam:*:*:*:*:*:*:*:*
cpe:2.3:a:hgiga:msr45_isherlock-audit:*:*:*:*:*:*:*:*
cpe:2.3:a:hgiga:msr45_isherlock-base:*:*:*:*:*:*:*:*
cpe:2.3:a:hgiga:msr45_isherlock-user:*:*:*:*:*:*:*:*
cpe:2.3:a:hgiga:msr45_isherlock-useradmin:*:*:*:*:*:*:*:*
cpe:2.3:a:hgiga:ssr45_isherlock-antispam:*:*:*:*:*:*:*:*
cpe:2.3:a:hgiga:ssr45_isherlock-audit:*:*:*:*:*:*:*:*
cpe:2.3:a:hgiga:ssr45_isherlock-base:*:*:*:*:*:*:*:*
cpe:2.3:a:hgiga:ssr45_isherlock-user:*:*:*:*:*:*:*:*
cpe:2.3:a:hgiga:ssr45_isherlock-useradmin:*:*:*:*:*:*:*:*

More vulnerabilities in Hgiga Msr45 Isherlock-antispam

CVE-2021-22848 — High (CVSS 7.0): HGiga MailSherlock contains a SQL Injection. Remote attackers can inject SQL syntax and execute SQL commands in a URL…
CVE-2020-35743 — High (CVSS 7.0): HGiga MailSherlock contains a SQL injection flaw. Attackers can inject and launch SQL commands in a URL parameter of…
CVE-2020-35742 — High (CVSS 7.0): HGiga MailSherlock contains a vulnerability of SQL Injection. Attackers can inject and launch SQL commands in a URL…
CVE-2020-35741 — High (CVSS 7.0): HGiga MailSherlock does not validate user parameters on multiple login pages. Attackers can use the vulnerability to…
CVE-2020-35740 — High (CVSS 7.0): HGiga MailSherlock does not validate specific URL parameters properly that allows attackers to inject JavaScript syntax…

All CVEs affecting Hgiga Msr45 Isherlock-antispam →

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 →