How severe is CVE-2017-10807?

CVE-2017-10807 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-2017-10807 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-10807?

CVE-2017-10807 affects Jabberd2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-10807?

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-2017-10807 published?

CVE-2017-10807 was published on 2017-07-04 and last updated on 2026-06-17.

CVE-2017-10807

CVE-2017-10807 is a critical-severity vulnerability in Jabberd2 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: 7.5
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Jabberd2
Published: 2017-07-04
Last modified: 2026-06-17

Description

JabberD 2.x (aka jabberd2) before 2.6.1 allows anyone to authenticate using SASL ANONYMOUS, even when the sasl.anonymous c2s.xml option is not enabled.

Frequently asked questions

What is CVE-2017-10807?: JabberD 2.x (aka jabberd2) before 2.6.1 allows anyone to authenticate using SASL ANONYMOUS, even when the sasl.anonymous c2s.xml option is not enabled.
How severe is CVE-2017-10807?: CVE-2017-10807 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-2017-10807 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-10807?: CVE-2017-10807 affects Jabberd2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-10807?: 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-2017-10807 published?: CVE-2017-10807 was published on 2017-07-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jabberd2:jabberd2:*:*:*:*:*:*:*:*

More vulnerabilities in Jabberd2

CVE-2017-18225 — High (CVSS 7.8): The Gentoo net-im/jabberd2 package through 2.6.1 installs jabberd, jabberd2-c2s, jabberd2-router, jabberd2-s2s, and…
CVE-2011-1755 — High (CVSS 7.5): jabberd2 before 2.2.14 does not properly detect recursion during entity expansion, which allows remote attackers to…
CVE-2015-2058 — Medium (CVSS 6.5): c2s/c2s.c in Jabber Open Source Server 2.3.2 and earlier truncates data without ensuring it remains valid UTF-8, which…
CVE-2012-3525 — Medium (CVSS 5.8): s2s/out.c in jabberd2 2.2.16 and earlier does not verify that a request was made for an XMPP Server Dialback response,…
CVE-2017-18226 — Medium (CVSS 5.5): The Gentoo net-im/jabberd2 package through 2.6.1 sets the ownership of /var/run/jabber to the jabber account, which…

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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.
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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 →