CVE-2019-6486

mediumpriority · track · 35EPSS 0.045 · 91 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

4.50% (91st) EPSS

CVSS 6.4 · medium

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Go before 1.10.8 and 1.11.x before 1.11.5 mishandles P-521 and P-384 elliptic curves, which allows attackers to cause a denial of service (CPU consumption) or possibly conduct ECDH private key recovery attacks.

cvss

Technical severity, 0–10. One row per scoring source.

8.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–8.2

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.08.2highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 4.2

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USprimaryCWE-20US

affected products (12)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
The Go Project Go≤ 1.11.5fstec_bduRU
The Go Project Go≤ 1.10.8fstec_bduRU
АО «Концерн ВНИИНС» ОС ОН «Стрелец»≤ 16.01.2023fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.1fstec_bduRU
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
golang go< 1.10.8nvdUScpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
golang go1.11.1 → 1.11.5nvdUScpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
opensuse leap= 15.0nvdUScpe:2.3:o:opensuse:leap:*:*:*:*:*:*:*:*
Go stdlib< 1.10.8osvUSpkg:golang/stdlib
Go stdlib1.11.0-0 → 1.11.5osvUSpkg:golang/stdlib

advisories (1)

Vendor and ecosystem advisories describing this.

GO-2022-0217Denial of service affecting P-521 and P-384 curves in crypto/elliptic2022-05-24vendor · osvUS
A DoS vulnerability in the crypto/elliptic implementations of the P-521 and P-384 elliptic curves may let an attacker craft inputs that consume excessive amounts of CPU. These inputs might be delivered via TLS handshakes, X.509 certificates, JWT tokens, ECDH shares or ECDSA signatures. In some cases, if an ECDH private key is reused more than once, the attack can also lead to key recovery.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv NVD CVE.org MITRE

published 2019-01-24modified 2026-06-17

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+3263 more

references (50)

External citations — patches, advisories, analysis.

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