How severe is CVE-2017-14955?

CVE-2017-14955 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2017-14955 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-14955?

CVE-2017-14955 primarily affects Checkmk. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-14955?

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

When was CVE-2017-14955 published?

CVE-2017-14955 was published on 2017-10-02 and last updated on 2026-06-17.

CVE-2017-14955

CVE-2017-14955 is a medium-severity vulnerability in Checkmk with a CVSS 3.x base score of 5.9. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Checkmk
Published: 2017-10-02
Last modified: 2026-06-17

Description

Check_MK before 1.2.8p26 mishandles certain errors within the failed-login save feature because of a race condition, which allows remote attackers to obtain sensitive user information by reading a GUI crash report.

Frequently asked questions

What is CVE-2017-14955?: Check_MK before 1.2.8p26 mishandles certain errors within the failed-login save feature because of a race condition, which allows remote attackers to obtain sensitive user information by reading a GUI crash report.
How severe is CVE-2017-14955?: CVE-2017-14955 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2017-14955 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-14955?: CVE-2017-14955 primarily affects Checkmk. In total, 19 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-14955?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-14955 published?: CVE-2017-14955 was published on 2017-10-02 and last updated on 2026-06-17.

References

Affected products (19)

cpe:2.3:a:checkmk:checkmk:1.2.3:i6:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.3:i7:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.4:b1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.5:i1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.5:i2:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.5:i3:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.5:i4:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.5:i5:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.5:i6:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.6:b1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.6:b2:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.6:p13:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.7:i1:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.7:i1p2:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.7:i2:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.7:i3:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.7:i4:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.8:p18:*:*:*:*:*:*
cpe:2.3:a:checkmk:checkmk:1.2.8:p25:*:*:*:*:*:*

More vulnerabilities in Checkmk

CVE-2022-46836 — Critical (CVSS 9.1): PHP code injection in watolib auth.php and hosttags.php in Tribe29's Checkmk <= 2.1.0p10, Checkmk <= 2.0.0p27, and…
CVE-2026-24096 — High (CVSS 8.8): Insufficient permission validation on multiple REST API Quick Setup endpoints in Checkmk 2.5.0 (beta) before version…
CVE-2025-32918 — High (CVSS 8.8): Improper neutralization of Livestatus command delimiters in autocomplete endpoint within the RestAPI of Checkmk…
CVE-2025-1712 — High (CVSS 8.8): Argument injection in special agent configuration in Checkmk <2.4.0p1, <2.3.0p32, <2.2.0p42 and 2.1.0 allows…
CVE-2025-32917 — High (CVSS 8.8): Privilege escalation in jar_signature agent plugin in Checkmk versions <2.4.0b7 (beta), <2.3.0p32, <2.2.0p42, and…
CVE-2024-38865 — High (CVSS 8.8): Improper neutralization of livestatus command delimiters in a specific endpoint within RestAPI of Checkmk prior to…

All CVEs affecting Checkmk →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →