Skip to main content
cvebuzz

CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2026-51263

schreibfaul1 ESP32-audioI2S 3.4.5 is vulnerable to Buffer Overflow. The Audio::openai_speech function in the Audio library manually constructs JSON request bodies and HTTP request headers by directly concatenating externally controllable input and instructions strings without effective length restriction and boundary validation. An unauthenticated remote attacker can send oversized malicious string data to trigger a heap buffer overflow during string splicing, resulting in memory corruption.

CVSS 9.8 · CriticalBuzz score 16.0

Buzz score

Why this CVE is surfacing

Buzz score total 16.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 11.0 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
11.0
2 evidence mentions in the snapshot
Diversity score
5.0
1 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
2
within the 30d window
Peak daily
2
highest bucket

Evidence

Source links by recency

Newest mentions first
2 source links · newest first

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence
  • CVE-2026-54715

    GoAccess is a real-time web log analyzer and interactive viewer that runs in a terminal in *nix systems or through the browser. In version 1.10.2, parse_browser assumes the matche…

    CVSS 7.1 · High
    2 mentions
  • CVE-2026-51272

    In schreibfaul1 ESP32-audioI2S 3.4.5, a heap-based buffer overflow vulnerability exists in the latinToUTF8() character encoding conversion function. The function calculates requir…

    CVSS 9.8 · Critical
    2 mentions
  • CVE-2026-17951

    Heap buffer overflow in WebRTC in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to perform an out of bounds memory read via a crafted HTML page. (Chromium securit…

    CVSS 8.8 · High
    2 mentions
  • CVE-2026-17935

    Heap buffer overflow in Codecs in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium secu…

    CVSS 8.8 · High
    2 mentions
  • CVE-2026-17758

    Heap buffer overflow in Dawn in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security…

    CVSS 9.6 · Critical
    2 mentions
  • CVE-2026-17680

    Heap buffer overflow in Color in Google Chrome on ChromeOS prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandb…

    CVSS 9.6 · Critical
    2 mentions