CVE-2023-43955

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-12-27. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

The com.phlox.tvwebbrowser TV Bro application through 2.0.0 for Android mishandles external intents through WebView. This allows attackers to execute arbitrary code, create arbitrary files. and perform arbitrary downloads via JavaScript that uses takeBlobDownloadData.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
67%
KEV
Not listed

Published

December 27, 2023

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 3, 2026
🔬 Proof of concept available. No patch confirmed yet. Sources: github_pr.
github_pr

Update AndroidManifest.xml

Upstream fix in progress (PR #182 · truefedex/tv-bro, state=closed)

https://github.com/truefedex/tv-bro/pull/182#issue-1901769895
generic

com.phlox.tvwebbrowser/poc.apk at main · actuator/com.phlox.tvwebbrowser · GitHub

https://github.com/actuator/com.phlox.tvwebbrowser/blob/main/poc.apk
generic🟡 PoC Available

com.phlox.tvwebbrowser/CWE-94.md at main · actuator/com.phlox.tvwebbrowser · GitHub

https://github.com/actuator/com.phlox.tvwebbrowser/blob/main/CWE-94.md
generic

GitHub - actuator/com.phlox.tvwebbrowser: CVE-2023-43955 · GitHub

https://github.com/actuator/com.phlox.tvwebbrowser

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× 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.

Showing the most recent 100 of 129 total refreshes for this CVE.

  1. 2026-08-07 16:25 UTCEPSS rescore
  2. 2026-08-06 13:45 UTCEPSS rescore
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  24. 2026-07-23 02:27 UTCEG score recompute
  25. 2026-07-22 23:13 UTCEG score recompute
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  72. 2026-06-09 11:14 UTCOSV refresh
  73. 2026-06-08 14:16 UTCEPSS rescore
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  75. 2026-06-07 15:23 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2023-43955?
CVE-2023-43955 is a critical vulnerability published on December 27, 2023. The com.phlox.tvwebbrowser TV Bro application through 2.0.0 for Android mishandles external intents through WebView. This allows attackers to execute arbitrary code, create arbitrary files. and perform arbitrary downloads via JavaScript that uses takeBlobDownloadData.
When was CVE-2023-43955 disclosed?
CVE-2023-43955 was first published in the National Vulnerability Database on December 27, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-43955 actively exploited?
CVE-2023-43955 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 33.2% of all scored CVEs.
What is the CVSS score of CVE-2023-43955?
CVE-2023-43955 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-43955?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-43955, 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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