CVE-2022-48711: tipc: improve size validations for received domain records
Vulnerability summary
CVE-2022-48711 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 43.2% of scored vulnerabilities.
Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 11Timeline
- 20-06-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: tipc: improve size validations for received domain records The function tipc_mon_rcv() allows a node to receive and process domain_record structs from peer nodes to track their views of the network topology. This patch verifies that the number of members in a received domain record does not exceed the limit defined by MAX_MON_DOMAIN, something that may otherwise lead to a stack overflow. tipc_mon_rcv() is called from the function tipc_link_proto_rcv(), where we are reading a 32 bit message data length field into a uint16. To avert any risk of bit overflow, we add an extra sanity check for this in that function. We cannot see that happen with the current code, but future designers being unaware of this risk, may introduce it by allowing delivery of very large (> 64k) sk buffers from the bearer layer. This potential problem was identified by Eric Dumazet. This fixes CVE-2022-0435
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.51%
Chance of exploitation in the next 30 days
Percentile
43%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.51% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu88 products
- linux< 4.15.0-173.182 | < 5.4.0-105.119
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 4.15.0-1124.133 | < 5.4.0-1069.73
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 35c55c9877f8de0ab129fa1a309271d0ecc868b9, < 175db196e45d6f0e6047eccd09c8ba55465eb131 | ≥ 35c55c9877f8de0ab129fa1a309271d0ecc868b9, < fde4ddeadd099bf9fbb9ccbee8e1b5c20d530a2d | ≥ 35c55c9877f8de0ab129fa1a309271d0ecc868b9, < f1af11edd08dd8376f7a84487cbb0ea8203e3a1d | ≥ 35c55c9877f8de0ab129fa1a309271d0ecc868b9, < d692e3406e052dbf9f6d9da0cba36cb763272529 | ≥ 35c55c9877f8de0ab129fa1a309271d0ecc868b9, < 3c7e5943553594f68bbc070683db6bb6f6e9e78e | ≥ 35c55c9877f8de0ab129fa1a309271d0ecc868b9, < 1f1788616157b0222b0c2153828b475d95e374a7 | ≥ 35c55c9877f8de0ab129fa1a309271d0ecc868b9, < 59ff7514f8c56f166aadca49bcecfa028e0ad50f | ≥ 35c55c9877f8de0ab129fa1a309271d0ecc868b9, < 9aa422ad326634b76309e8ff342c246800621216 | 4.8
- linux_kernel≥ 4.8, < 4.9.301 | ≥ 4.10, < 4.14.266 | ≥ 4.15, < 4.19.229 | ≥ 4.20, < 5.4.179 | ≥ 5.5, < 5.10.100 | ≥ 5.11, < 5.15.23 | ≥ 5.16, < 5.16.9 | 5.17:rc1 | 5.17:rc2 | 5.17:rc3
Debian1 product
- linux< 5.16.10-1
3 vendors · 91 products
