CVE-2026-71969Disclosure

LOWCVSS 8.4 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft
Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

OP-TEE OS through 4.10.0, fixed in commit 7b8b494, contains a buffer underwrite vulnerability in the RSA NOPAD encrypt and decrypt operations within the mbedTLS software backend and SE050 hardware driver that allows a malicious Trusted Application to corrupt secure-world heap memory by supplying an input length exceeding the RSA modulus size. When src_len exceeds rsa_len, the subtraction expression wraps to a large unsigned value, causing a subsequent memcpy to write attacker-controlled data before the destination buffer in S-EL1 secure-world heap memory.

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1.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-124CWE-787

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Threat summary

Public PoC is present in monitored signal
1 mentions across 1 observed day

What's happening

PoC mentioned or linked in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Full discourse1 post

Mehrun@mehrrun46d
Disclosure
My two cents is that this democratises AI-availability and Privacy. Doom on hardware Y is an existence proof and dies there! For fulfilling your curiosity running a glm-5.1 UD-IQ1_M on one Mac studio M3 ultra plus a iogpu sysctl made us at #byteray #CVE-2026-55706 a 27-year old bug on #OpenBSD just a few weeks after Mythos worked heavily on the same part of the its kernel! Btw, it wasn’t just an llm prompt to hunt bugs, however a bit more work on agents, pairing 1bit quant with precomputed CPG/DFG analysis yet autonomously, RAG over mcp. The setup also leads us to hundreds of advisories including: #CVE-2026-55706 #CVE-2026-71967 #CVE-2026-71968 #CVE-2026-71969 #CVE-2026-71970 #CVE-2026-71971 #CVE-2026-71972 #CVE-2026-71973 #CVE-2026-71974 #CVE-2026-74220 #CVE-2026-74221 #CVE-2026-74222 #CVE-2026-74223 #CVE-2026-74224 #CVE-2026-74225 #CVE-2026-56099 #CVE-2026-56101 #CVE-2026-56102 #CVE-2026-56103 Yet all of these are just a small use case not a benchmark so I agree with you on that part @theByteRay
Post summary
The post notes the discovery of a long‑standing OpenBSD kernel bug (CVE-2026-55706) via AI‑driven scanning, references additional CVEs, but provides no exploit, patch, or technical details.
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