How severe is CVE-2018-1000835?

CVE-2018-1000835 has a CVSS 3.x base score of 10.0, 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-2018-1000835 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000835?

CVE-2018-1000835 primarily affects Keepassdx Keepass Dx. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-1000835?

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-2018-1000835 published?

CVE-2018-1000835 was published on 2018-12-20 and last updated on 2026-06-17.

CVE-2018-1000835

Q: What is CVE-2018-1000835?

KeePassDX version <= 2.5.0.0beta17 contains a XML External Entity (XXE) vulnerability in kdbx file parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.

CVE-2018-1000835 is a critical-severity vulnerability in Keepassdx Keepass Dx with a CVSS 3.x base score of 10.0. 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-611.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 7.5
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-611
Affected product: Keepassdx Keepass Dx
Published: 2018-12-20
Last modified: 2026-06-17

Description

KeePassDX version <= 2.5.0.0beta17 contains a XML External Entity (XXE) vulnerability in kdbx file parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.

Frequently asked questions

What is CVE-2018-1000835?: KeePassDX version <= 2.5.0.0beta17 contains a XML External Entity (XXE) vulnerability in kdbx file parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning.
How severe is CVE-2018-1000835?: CVE-2018-1000835 has a CVSS 3.x base score of 10.0, 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-2018-1000835 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000835?: CVE-2018-1000835 primarily affects Keepassdx Keepass Dx. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-1000835?: 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-2018-1000835 published?: CVE-2018-1000835 was published on 2018-12-20 and last updated on 2026-06-17.

References

Affected products (17)

cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta10:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta11:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta12:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta13:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta14:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta15:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta16:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta17:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta3:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta4:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta5:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta6:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta7:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta8:*:*:*:*:*:*
cpe:2.3:a:keepassdx:keepass_dx:2.5.0.0:beta9:*:*:*:*:*:*

Other CWE-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities

CVE-2022-22486 — Critical (CVSS 10.0): IBM Tivoli Workload Scheduler 9.4, 9.5, and 10.1 is vulnerable to an XML External Entity Injection (XXE) attack when…
CVE-2019-14678 — Critical (CVSS 10.0): SAS XML Mapper 9.45 has an XML External Entity (XXE) vulnerability that can be leveraged by malicious attackers in…
CVE-2015-9280 — Critical (CVSS 10.0): MailEnable before 8.60 allows XXE via an XML document in the request.aspx Options parameter.
CVE-2018-1000838 — Critical (CVSS 10.0): autopsy version <= 4.9.0 contains a XML External Entity (XXE) vulnerability in CaseMetadata XML Parser that can result…
CVE-2018-1000837 — Critical (CVSS 10.0): UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can…
CVE-2018-1000831 — Critical (CVSS 10.0): K9Mail version <= v5.600 contains a XML External Entity (XXE) vulnerability in WebDAV response parser that can result…

Browse all CWE-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities →