How severe is CVE-2016-4460?

CVE-2016-4460 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-2016-4460 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4460?

CVE-2016-4460 primarily affects Apache Pony Mail. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4460?

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-2016-4460 published?

CVE-2016-4460 was published on 2017-08-22 and last updated on 2026-06-17.

CVE-2016-4460

CVE-2016-4460 is a critical-severity vulnerability in Apache Pony Mail 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: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Apache Pony Mail
Published: 2017-08-22
Last modified: 2026-06-17

Description

Apache Pony Mail 0.6c through 0.8b allows remote attackers to bypass authentication.

Frequently asked questions

What is CVE-2016-4460?: Apache Pony Mail 0.6c through 0.8b allows remote attackers to bypass authentication.
How severe is CVE-2016-4460?: CVE-2016-4460 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-2016-4460 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4460?: CVE-2016-4460 primarily affects Apache Pony Mail. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4460?: 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-2016-4460 published?: CVE-2016-4460 was published on 2017-08-22 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:apache:pony_mail:0.6c:*:*:*:*:*:*:*
cpe:2.3:a:apache:pony_mail:0.7b:*:*:*:*:*:*:*
cpe:2.3:a:apache:pony_mail:0.8b:*:*:*:*:*:*:*

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