CVE-2019-15544

mediumpriority · track · 31EPSS 0.038 · 90 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.76% (90th) EPSS

CVSS 5 · medium

Is it mine?

7 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-28

An issue was discovered in the protobuf crate before 2.6.0 for Rust. Attackers can exhaust all memory via Vec::reserve calls.

cvss

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

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USprimaryCWE-770US

affected products (7)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
apache hbase= 2.2.3nvdUScpe:2.3:a:apache:hbase:*:*:*:*:*:*:*:*
rust-protobuf project rust-protobuf< 1.7.5nvdUScpe:2.3:a:rust-protobuf_project:rust-protobuf:*:*:*:*:*:*:*:*
rust-protobuf project rust-protobuf2.0.0 → 2.6.0nvdUScpe:2.3:a:rust-protobuf_project:rust-protobuf:*:*:*:*:*:*:*:*
crates.io protobuf< 2.6.0osvUSpkg:cargo/protobuf
crates.io protobuf0.0.0-0 → 1.7.5osvUSpkg:cargo/protobuf
crates.io protobuf2.0.0-0 → 2.6.0osvUSpkg:cargo/protobuf

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-mh6h-f25p-98f8Uncontrolled memory consumption in protobuf2021-08-25ghsa · osvUS
Affected versions of this crate called Vec::reserve() on user-supplied input. This allows an attacker to cause an Out of Memory condition while calling the vulnerable method on untrusted data.
RUSTSEC-2019-0003Out of Memory in stream::read_raw_bytes_into()2019-06-08vendor · osvUS
Affected versions of this crate called Vec::reserve() on user-supplied input. This allows an attacker to cause an Out of Memory condition while calling the vulnerable method on untrusted data.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2019-08-26modified 2026-06-17

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+3277 more

references (16)

External citations — patches, advisories, analysis.

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