CVE-2025-34449

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory published 2025-12-19. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Genymobile/scrcpy versions up to and including 3.3.3, prior to commit 3e40b24, contain a buffer overflow vulnerability in the sc_device_msg_deserialize() function. A compromised device can send crafted messages that cause out-of-bounds reads, which may result in memory corruption or a denial-of-service condition. This vulnerability may allow further exploitation on the host system.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
57(Track)
EG Risk 57/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity91% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
28.4%
KEV
Not listed

Published

December 18, 2025

Last Modified

January 3, 2026

Advisory Details (4)

Auto-updated Jul 23, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

advisories/advisories/MCSAID-2025-003-scrcpy-global-buffer-overflow.md at main · marlinkcyber/advisories · GitHub

https://github.com/marlinkcyber/advisories/blob/main/advisories/MCSAID-2025-003-scrcpy-global-buffer-overflow.md
generic

Genymobile/scrcpy <= 3.3.3 Global Buffer Overflow | Advisories | VulnCheck

https://www.vulncheck.com/advisories/genymobile-scrcpy-global-buffer-overflow
generic

global-buffer-overflow in sc_read32be - sc_device_msg_deserialize - process_msgs · Issue #6415 · Genymobile/scrcpy · GitHub

https://github.com/Genymobile/scrcpy/issues/6415
github_commit

commit 3e40b24 (Genymobile/scrcpy)

Fix landed in Genymobile/scrcpy commit 3e40b24 — awaiting tagged release

https://github.com/Genymobile/scrcpy/commit/3e40b24

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 47× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-25 14:17 UTCEPSS rescore
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  4. 2026-07-23 12:19 UTCOSV refresh
  5. 2026-07-23 02:54 UTCEG score recompute
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  1. 2026-07-11 08:27 UTCEPSS rescore
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  7. 2026-07-06 07:02 UTCOSV refresh
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  39. 2026-06-17 18:44 UTCOSV refresh
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  66. 2026-05-29 17:13 UTCEG score recompute
  67. 2026-05-29 17:13 UTCGHSA enrichment
  68. 2026-05-29 13:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2025-34449?
CVE-2025-34449 is a critical vulnerability published on December 18, 2025. Genymobile/scrcpy versions up to and including 3.3.3, prior to commit 3e40b24, contain a buffer overflow vulnerability in the scdevicemsg_deserialize() function. A compromised device can send crafted messages that cause out-of-bounds reads, which may result in memory corruption or a…
When was CVE-2025-34449 disclosed?
CVE-2025-34449 was first published in the National Vulnerability Database on December 18, 2025, with the most recent update on January 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-34449 actively exploited?
CVE-2025-34449 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-34449?
CVE-2025-34449 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2025-34449?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-34449, 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.

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