CVE-2019-10251

MEDIUMNVD 5.95.9—

5.9

The UCWeb UC Browser application through 2019-03-26 for Android uses HTTP to download certain modules associated with PDF and Microsoft Office files (related to libpicsel), which allows MITM attacks.

CVSS v3: 5.9
EG Score: 5.9(medium)
EPSS: 36.0%
KEV: Not listed

Published

March 28, 2019

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://news.drweb.com/show/?i=13176&c=38
cve@mitrehttps://www.bleepingcomputer.com/news/security/uc-browser-for-android-desktop-exposes-500-million-users-to-mitm-attacks/
af854a3a-2127-422b-91ae-364da2661108https://news.drweb.com/show/?i=13176&c=38
af854a3a-2127-422b-91ae-364da2661108https://www.bleepingcomputer.com/news/security/uc-browser-for-android-desktop-exposes-500-million-users-to-mitm-attacks/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-319Cleartext Transmission of Sensitive Information

Data Freshness Timeline

(refreshed 9× in last 7d / 16× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 21:18 UTCEG score recompute
2026-05-27 21:18 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2019-10251?

CVE-2019-10251 is a medium vulnerability published on March 28, 2019. The UCWeb UC Browser application through 2019-03-26 for Android uses HTTP to download certain modules associated with PDF and Microsoft Office files (related to libpicsel), which allows MITM attacks.

When was CVE-2019-10251 disclosed?

CVE-2019-10251 was first published in the National Vulnerability Database on March 28, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-10251 actively exploited?

CVE-2019-10251 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-10251?

CVE-2019-10251 has a CVSS v3 base score of 5.9 (NVD).

How do I remediate CVE-2019-10251?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-10251, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2019-10251

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2019-10251?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)