CVE-2024-11407: There exists a denial of service through Data corruption in gRPC-C++ - gRPC-C++ servers with transmit zero cop

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HIGH 7.5REMOTEUPGRADE

CVE-2024-11407 is a high-severity flaw (CVSS 7.5) affecting grpc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

There exists a denial of service through Data corruption in gRPC-C++ - gRPC-C++ servers with transmit zero copy enabled through the channel arg GRPC_ARG_TCP_TX_ZEROCOPY_ENABLED can experience data corruption issues. The data sent by the application may be corrupted before transmission over the network thus leading the receiver to receive an incorrect set of bytes causing RPC requests to fail. We recommend upgrading past commit e9046b2bbebc0cb7f5d

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 53%)
CISA exploited list	No
Weakness	CWE-682
Published	2024-11-26
Last modified	2026-06-17

Publisher (CNA): Google Inc. · Vendor: grpc

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-11-26 17:15 UTCPublished CVE record published
2026-06-17 06:57 UTCUpdated Record last modified

grpc grpc UPGRADE

Affected: >= 1.60.0 and < 1.66.1

Fixed in: 1.66.1

Safe to downgrade to: a release before 1.60.0

1. Check installed version

apt-cache policy grpc || rpm -q grpc || grpc --version

2. UPGRADE to 1.66.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade grpc

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade grpc

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.60.0 (Debian / Ubuntu)

apt-cache madison grpc sudo apt install grpc=<VERSION_BEFORE_1.60.0> sudo apt-mark hold grpc

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list grpc sudo dnf downgrade grpc-<VERSION_BEFORE_1.60.0> sudo dnf versionlock add grpc

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-11407?

grpc: upgrade to 1.66.1. Exact commands for each OS are on this page.

Is CVE-2024-11407 being exploited?

CVE-2024-11407 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-11407 affect?

CVE-2024-11407 affects grpc. Severity is high (CVSS 7.5). There exists a denial of service through Data corruption in gRPC-C++ - gRPC-C++ servers with transmit zero copy enabled through the channel arg GRPC_ARG_TCP_TX_ZEROCOPY_ENABLED can experience data corruption issues. The data sent by the app

How urgent is CVE-2024-11407?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-33186 CRITICAL 9.1 UPGRADE gRPC-Go is the Go language implementation of gRPC
CVE-2024-7246 MEDIUM 5.3 UPGRADE It's possible for a gRPC client communicating with a HTTP/2 proxy to poison the HPACK table between the proxy

References

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